{"title":"BlackOut Series Power Brake Boosters","description":"","products":[{"product_id":"1967-69-chevy-camaro-blackout-power-brake-booster-with-wilwood-master-cylinder","title":"1967-69 Chevy Camaro Black Out Power Brake Booster with POL or Wilwood Master Cylinder","description":"\u003cp\u003e1967-69 Camaro and Firebird Black Out power brake conversion with 9\" diameter black power booster and black POL or Wilwood master cylinder was introduced by Performance Online in April 2013 and received a huge response. This performance power brake system adds a nice professional detailed look to your classic muscle car. Improves stopping distances and driver performance tremendously\u003c\/p\u003e\r\n","brand":"Performance Online (POL)","offers":[{"title":"POL Master","offer_id":44023558373410,"sku":"BB-9S-C6769PBO","price":629.5,"currency_code":"USD","in_stock":true},{"title":"Wilwood Master","offer_id":44023558406178,"sku":"BB-9S-C6769WB","price":679.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0811\/7642\/8578\/files\/Type_20D-G4F0W3.jpg?v=1754094218"},{"product_id":"1967-72-chevy-gmc-truck-black-out-power-brake-booster-kit-with-wilwood-master-cylinder","title":"1967-72 Chevy, GMC Truck Black Out Power Brake Booster Kit, POL or Wilwood Master Cylinder","description":"\u003cp\u003eBLACK OUT power brake conversion for the 1967-72 Chevy and GMC trucks consists of a 9\" black vacuum booster, POL or Wilwood master cylinder and Black Out adjustable proportioning valve. Performance Online introduced this item in 2013 and received a huge response. This kit adds a nice professional detailed look to your classic truck. Improves stopping distances and driver performance tremendously. A must when converting to an LS engine where additional space is required.\u003c\/p\u003e\r\n","brand":"Performance Online (POL)","offers":[{"title":"POL Master","offer_id":44023724408866,"sku":"BB-9S-T6772PBO","price":629.5,"currency_code":"USD","in_stock":true},{"title":"Wilwood Master","offer_id":44023724441634,"sku":"BB-9S-T6772WB","price":679.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0811\/7642\/8578\/files\/Type_20A-SmQMZT.jpg?v=1754104092"},{"product_id":"1960-66-chevy-c10-gmc-c15-truck-black-out-series-power-brake-booster-kit-with-wilwood-master-cylinder","title":"1960-66 Chevy C10, GMC C15 Truck Black Out Series Power Brake Booster Kit with POL or Wilwood Master Cylinder","description":"\u003cp\u003eThis new BLACK OUT Power Brake Conversion for the 1960-66 Chevy and GMC trucks consists of a 9\" diameter vacuum booster and black POL or Wilwood master cylinder and Black Out adjustable proportioning valve. Performance Online introduced this item in April 2013 and received a huge response. This kits add a nice professional detailed look to your classic. Improves stopping distances and driver performance tremendously.\u003c\/p\u003e\r\n","brand":"Performance Online (POL)","offers":[{"title":"60-62 \/ POL Master","offer_id":44023725621282,"sku":"BB-9S-T6062PBO","price":642.13,"currency_code":"USD","in_stock":true},{"title":"63-66 \/ POL Master","offer_id":44023725654050,"sku":"BB-9S-T6366PBO","price":629.5,"currency_code":"USD","in_stock":true},{"title":"63-66 \/ Wilwood Master","offer_id":44023725752354,"sku":"BB-9S-T6366WB","price":679.5,"currency_code":"USD","in_stock":true},{"title":"60-62 \/ Wilwood Master","offer_id":44023725785122,"sku":"BB-9S-T6062WB","price":692.13,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0811\/7642\/8578\/files\/Type_20A-sxqd8P.jpg?v=1754104187"},{"product_id":"1973-87-chevy-c10-truck-black-out-series-power-brake-booster-with-wilwood-master-cylinder","title":"1973-87 Chevy C10 Truck Black Out Series Power Brake Booster with POL or Wilwood Master Cylinder","description":"\u003cp\u003eOur Black Out power brake conversion for the 1973-87 Chevy and GMC trucks consists of a 9\" vacuum booster, POL or Wilwood master cylinder and Black Out adjustable proportioning valve. This kit adds a nice professional detailed look to your classic truck. Improves stopping distances and driver performance tremendously\u003c\/p\u003e\n\u003cp\u003eSpecs:\u003c\/p\u003e\n\u003cp\u003e9\" Single Black Power Booster\u003cbr\u003eBlack aluminum POL dual chamber Master Cylinder\u003cbr\u003e1.00\" Piston Bore\u003cbr\u003eBlack Out adjustable prop valve\u003cbr\u003eBlack powder coated firewall brackets\u003cbr\u003ePedal push rod and clevis\u003cbr\u003eLine fittings and plugs\u003c\/p\u003e","brand":"Performance Online (POL)","offers":[{"title":"POL Master","offer_id":44023726506018,"sku":"BB-9S-T7387PBO","price":629.5,"currency_code":"USD","in_stock":true},{"title":"Wilwood Master","offer_id":44023726538786,"sku":"BB-9S-T7387WB","price":679.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0811\/7642\/8578\/files\/Type_20G-hWFXkJ.jpg?v=1754104223"},{"product_id":"1955-57-chevy-belair-black-out-power-brake-booster-with-wilwood-master-cylinder","title":"1955-57 Chevy Belair Black Out Power Brake Booster, POL or Wilwood Master Cylinder","description":"\u003cp\u003eOur Black Out power brake conversion for the 1955-57 Belair consists of a 9\" Black Booster and Black POL or Wilwood master cylinder and Black Out adjustable proportioning valve. Performance Online introduced this in 2013 and received a huge response. This kit contains a powder coated booster, Black POL or Wilwood high performance master cylinder, black adjustable proportioning valve and black powder coated brackets to add a nice professional detailed look to your classic. Improves stopping distances and driver performance tremendously.\u003c\/p\u003e\r\n","brand":"Performance Online (POL)","offers":[{"title":"POL Master","offer_id":44023726768162,"sku":"BB-9S-C5557PBO","price":629.5,"currency_code":"USD","in_stock":true},{"title":"Wilwood Master","offer_id":44023726800930,"sku":"BB-9S-C5557WB","price":679.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0811\/7642\/8578\/files\/Type_20A-hbluwZ.jpg?v=1754104239"},{"product_id":"1958-65-chevy-impala-black-out-series-wilwood-power-brake-booster-kit","title":"1958-65 Chevy Impala Black Out Series POL or Wilwood Power Brake Booster Kit","description":"\u003cp\u003eThis new Black Out power brake conversion for the 1958-65 Belair, Biscayne and Impala consists of a 9\" Black Booster and Black POL or Wilwood Master Cylinder and Black Out adjustable proprtiponing valve. Performance Online introduced this item first over 6 months ago and received a huge response. This kit contains a powder coated booster, Black POL or Wilwood High performance master cylinder, black adjustable prop valve and black powder coated brackets to add a nice professional detailed look to your classic. Improves stopping and driver performance tremendously.\u003c\/p\u003e\r\n\r\n\u003cul\u003e\r\n\u003c\/ul\u003e\r\n\r\n\u003cp\u003e \u003c\/p\u003e\r\n","brand":"Performance Online (POL)","offers":[{"title":"POL Master","offer_id":44023730077730,"sku":"BB-9S-C5865PBO","price":629.5,"currency_code":"USD","in_stock":true},{"title":"Wilwood Master","offer_id":44023730110498,"sku":"BB-9S-C5865WB","price":679.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0811\/7642\/8578\/files\/Type_20A-EmNs7w.jpg?v=1754104398"},{"product_id":"1968-74-chevy-nova-black-out-power-brake-booster-with-wilwood-master-cylinder","title":"1968-74 Chevy Nova Black Out Power Brake Booster with POL or Wilwood Master Cylinder","description":"\u003cp\u003e1968-74 Chevy Nova Black Out power brake conversion with 9\" Black Booster and Black POL or Wilwood master cylinder. Performance Online introduced this item in April 2013 and received a huge response. This kits add a nice professional detailed look to your classic. Improves stopping distances and driver performance tremendously.\u003c\/p\u003e\r\n\r\n\u003cul\u003e\r\n\u003c\/ul\u003e\r\n\r\n\u003cp\u003e \u003c\/p\u003e\r\n","brand":"Performance Online (POL)","offers":[{"title":"POL Master","offer_id":44023731093538,"sku":"BB-9S-C6874PBO","price":604.32,"currency_code":"USD","in_stock":true},{"title":"Wilwood Master","offer_id":44023731126306,"sku":"BB-9S-C6874WB","price":679.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0811\/7642\/8578\/files\/Type_20D-vvEhlH.jpg?v=1754104485"},{"product_id":"1964-72-chevy-chevelle-blackout-power-brake-booster-with-wilwood-master-cylinder","title":"1964-72 Chevy Chevelle BlackOut Power Brake Booster with POL or Wilwood Master Cylinder","description":"\u003cp\u003eOur 1964-72 Chevy Chevelle, Malibu and El Camino Black Out Seires POL or Wilwood power brake conversion mounts in the factory location. Greatly increases your stopping performance while making it easier on the driver. This kit includes a Black Out adjustable prop valve taking all the guess work out of the installation. Also makes going to rear disc brakes a snap without having to replace the existing valve found on most other kits. These components are a must when upgrading to disc brakes and come completely assembled, ready to install.\u003cbr\u003e\r\n \u003c\/p\u003e\r\n\r\n\u003cul\u003e\r\n\u003c\/ul\u003e\r\n","brand":"Performance Online (POL)","offers":[{"title":"Wilwood Master","offer_id":44023738859554,"sku":"BB-9S-C6472WB","price":679.5,"currency_code":"USD","in_stock":true},{"title":"POL Master","offer_id":44023738892322,"sku":"BB-9S-C6472PBO","price":629.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0811\/7642\/8578\/files\/Type_20D_f2a62aff-193c-47ee-ad7a-ef5eade1609e.jpg?v=1754105077"},{"product_id":"1973-77-chevy-chevelle-malibu-blackout-power-brake-booster-with-wilwood-master-cylinder","title":"1973-77 Chevy Chevelle, Malibu Black Out Power Brake Booster with POL or Wilwood Master Cylinder","description":"\u003cp\u003eOur Black Out power brake conversion for the 1973-77 GM A-Body cars consists of a 9\" Black Booster and Black POL or Wilwood Master Cylinder and Black Out adjustable proprtiponing valve. Performance Online introduced this item in April 2013 and received a huge response. This kit improves stopping distances and driver performance tremendously\u003c\/p\u003e\r\n","brand":"Performance Online (POL)","offers":[{"title":"POL Master","offer_id":44023802363938,"sku":"BB-9S-C7377PBO","price":629.5,"currency_code":"USD","in_stock":true},{"title":"Wilwood Master","offer_id":44023802396706,"sku":"BB-9S-C7377WB","price":679.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0811\/7642\/8578\/files\/Type_20F-pBxLoz.jpg?v=1754105804"},{"product_id":"1955-59-chevy-gmc-truck-black-out-power-brake-conversion-with-wilwood-master-cylinder-firewall-mount","title":"1955-59 Chevy, GMC Truck Black Out Power Brake Conversion with POL or Wilwood Master Cylinder, Firewall Mount","description":"\u003cp\u003eOur Black Out power brake conversion for the 1955-59 Chevy and GMC trucks consists of a 9\" black booster and black POL or Wilwood master cylinder and Black Out adjustable proportioning valve. This kit includes black powder coated brackets to add a nice professional detailed look to your classic. Improves stopping and driver performance tremendously.\u003c\/p\u003e\r\n","brand":"Performance Online (POL)","offers":[{"title":"Wilwood Master","offer_id":44023805542434,"sku":"BBF-9S-T5559WB","price":785.29,"currency_code":"USD","in_stock":true},{"title":"POL Master","offer_id":44023805575202,"sku":"BBF-9S-T5559PBO","price":735.29,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0811\/7642\/8578\/files\/Type_20C-wAvkT3.jpg?v=1754105821"},{"product_id":"1947-53-chevy-gmc-truck-blackout-series-power-brake-conversion-with-wilwood-master-cylinder-firewall-mount","title":"1947-53 Chevy, GMC Truck BlackOut Series Power Brake Conversion with POL or Wilwood Master Cylinder, Firewall Mount","description":"\u003cp\u003eOur Black Out power brake conversion for the 1947-53 Chevy and GMC trucks consists of a 9\" black power booster and black POL or Wilwood master cylinder and Black Out adjustable proportioning valve. This kit includes black powder coated brackets to add a nice professional detailed look to your classic. Improves stopping and driver performance tremendously.\u003c\/p\u003e\r\n","brand":"Performance Online (POL)","offers":[{"title":"POL Master Cylinder","offer_id":44023808786466,"sku":"BBF-9S-T4753PBO","price":700.2,"currency_code":"USD","in_stock":true},{"title":"Wilwood Master Cylinder","offer_id":44023808819234,"sku":"BBF-9S-T4753WB","price":750.28,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0811\/7642\/8578\/files\/Type_20C_99b934b2-7113-452c-bd6d-e6b8007b965e.jpg?v=1764892297"},{"product_id":"1953-56-ford-f100-truck-black-out-wilwood-power-brake-conversion-firewall-mount","title":"1953-56 Ford F100 Truck Black Out Wilwood Power Brake Conversion, Firewall Mount","description":"\u003cp\u003eOur Black Out power brake conversion for the 1953-56 Ford F100 Trucks consists of a 9\" Black Booster and Black Wilwood Master Cylinder and Black Out adjustable proportioning valve. This kit contains a powder coated booster, black Wilwood high performance master cylinder, black adjustable wilwood prop valve and black powder coated brackets to add a nice professional detailed look to your classic. Improves stopping and driver performance tremendously.\u003c\/p\u003e\r\n","brand":"Performance Online (POL)","offers":[{"title":"Wilwood Master","offer_id":44023809015842,"sku":"BBF-9S-T5356WB","price":785.29,"currency_code":"USD","in_stock":true},{"title":"POL Master","offer_id":44023809048610,"sku":"BBF-9S-T5356PBO","price":735.3,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0811\/7642\/8578\/files\/Type_20C-Hz4ujL.jpg?v=1754105855"},{"product_id":"1974-86-jeep-cj-blackout-series-power-brake-booster-kit-with-wilwood-master-cylinder","title":"1974-86 Jeep CJ BlackOut Series Power Brake Booster Kit with POL or Wilwood Master Cylinder","description":"\u003cp\u003e1974-86 Jeep CJ Series BLACK OUT Power Brake Conversion w\/ 9\" single Black Booster and Black POL or Wilwood Master Cylinder. Performance Online introduced this item in April 2013 and received a huge response. This kits add a nice professional detailed look to your classic. Improves stopping distances and driver performance tremendously\u003c\/p\u003e\r\n","brand":"Performance Online (POL)","offers":[{"title":"POL Master","offer_id":44023809179682,"sku":"BB-9S-J7486PBO","price":604.32,"currency_code":"USD","in_stock":true},{"title":"Wilwood Master","offer_id":44023809212450,"sku":"BB-9S-J7486WB","price":679.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0811\/7642\/8578\/files\/Type_20H-MsaS9U.jpg?v=1754105871"},{"product_id":"1954-55-chevy-gmc-truck-black-out-power-brake-conversion-wilwood-master-cylinder-firewall-mount","title":"1954-55 Chevy, GMC Truck Black Out Power Brake Conversion with Wilwood Master Cylinder, Firewall Mount","description":"\u003cp\u003eOur Black Out power brake conversion for the 1954-55.1 Chevy and GMC trucks consists of a 9\" black booster and black Wilwood master cylinder and Black Out adjustable proportioning valve. This kit contains black powder coated brackets to add a nice professional detailed look to your classic. Improves stopping and driver performance tremendously.\u003c\/p\u003e\r\n","brand":"Performance Online (POL)","offers":[{"title":"POL Master","offer_id":44023839424546,"sku":"BBF-9S-T5455PBO","price":700.28,"currency_code":"USD","in_stock":true},{"title":"Wilwood Master","offer_id":44023839457314,"sku":"BBF-9S-T5455WB","price":750.28,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0811\/7642\/8578\/files\/Type_20B-Ko9XlH.jpg?v=1754106066"},{"product_id":"1948-52-ford-f1-truck-black-out-wilwood-power-brake-booster-firewall-mount","title":"1948-52 Ford F1 Truck Black Out Wilwood Power Brake Booster, Firewall Mount","description":"\u003cp\u003eOur Black Out power brake conversion for the 1948-52 Ford F1 trucks consists of a 9\" Black Booster and black POL or Wilwood master cylinder and Black Out adjustable proportioning valve. This kit contains a powder coated booster, black POL or Wilwood high performance master cylinder, black adjustable prop valve and black powder coated brackets to add a nice professional detailed look to your classic. Improves stopping and driver performance tremendously.\u003c\/p\u003e\r\n","brand":"Performance Online (POL)","offers":[{"title":"Wilwood Master","offer_id":44023849746466,"sku":"BBF-9S-T4852WB","price":785.29,"currency_code":"USD","in_stock":true},{"title":"POL Master","offer_id":44023849779234,"sku":"BBF-9S-T4852PBO","price":735.3,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0811\/7642\/8578\/files\/Type_20B-nzIqtH.jpg?v=1754106119"},{"product_id":"1962-74-mopar-black-out-series-power-brake-booster-kit-wilwood-master-cylinder","title":"1962-74 Mopar Black Out Series Power Brake Booster Kit, POL or Wilwood Master Cylinder","description":"\u003cp\u003eBlack Out power brake conversion for your 1962-74 Mopar, Dodge, Plymouth, Chrysler utilizes 8\" dual black power booster and black POL or Wilwood master cylinder and Black Out adjustable proportioning valve. Improves stopping distances and driver performance tremendously. Made in the USA. These components are a must when upgrading to disc brakes and come completely assembled, ready to install. Convert from Manual Brakes to Power Brakes on A, B \u0026amp; E Body cars, modifications required on factory power brake cars. Works with small block and most big block and Hemi engines. Will not fit A-Body cars with a big block or Hemi. Kit is compatible with drum brakes, 2 and 4 wheel disc.\u003c\/p\u003e\n\u003cp\u003eSpecs:\u003c\/p\u003e\n\u003cp\u003eBlack 8\" diameter dual diaphragm power booster\u003cbr\u003eMounting brackets\u003cbr\u003e1.00\" bore POL master cylinder\u003cbr\u003eBlack Out proportioning valve, bracket and lines\u003cbr\u003eMeasures approx 17.625\" long from firewall to end of master cylinder\u003c\/p\u003e","brand":"Performance Online (POL)","offers":[{"title":"POL Master","offer_id":44024031576098,"sku":"BB-8D-C6274PBO","price":652.91,"currency_code":"USD","in_stock":true},{"title":"Wilwood Master","offer_id":44024031608866,"sku":"BB-8D-C6274WB","price":702.91,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0811\/7642\/8578\/files\/BB-8D-C6274WB_700.jpg?v=1767656988"},{"product_id":"1970-81-chevy-camaro-black-out-power-brake-booster-with-wilwood-master-cylinder","title":"1970-81 Chevy Camaro Black Out Power Brake Booster with POL or Wilwood Master Cylinder","description":"\u003cp\u003e1970-81 Camaro and Firebird BLACK OUT Power Brake Conversion w\/ 9\" Black Booster and Black POL or Wilwood Master Cylinder. Performance Online introduced this item in April 2013 and received a huge response. This kits add a nice professional detailed look to your classic. Improves stopping distances and driver performance tremendously.\u003c\/p\u003e\r\n","brand":"Performance Online (POL)","offers":[{"title":"POL Master","offer_id":44024175558690,"sku":"BB-9S-C7081PBO","price":629.5,"currency_code":"USD","in_stock":true},{"title":"Wilwood Master","offer_id":44024175591458,"sku":"BB-9S-C7081WB","price":679.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0811\/7642\/8578\/files\/Type_20D-uYtZea.jpg?v=1754109285"},{"product_id":"1970-81-chevy-camaro-black-out-8-dual-power-brake-booster-with-wilwood-master-cylinder","title":"1970-81 Chevy Camaro Black Out 8\" Dual Power Brake Booster with POL or Wilwood Master Cylinder","description":"\u003cp\u003e1970-81 Camaro and Firebird BLACK OUT Power Brake Conversion w\/ 8\" dual Black Booster and Black POl or Wilwood Master Cylinder. Performance Online introduced this item in April 2013 and received a huge response. This kits add a nice professional detailed look to your classic. Improves stopping distances and driver performance tremendously.\u003c\/p\u003e\r\n\r\n\u003cul\u003e\r\n\u003c\/ul\u003e\r\n\r\n\u003cp\u003e \u003c\/p\u003e\r\n","brand":"Performance Online (POL)","offers":[{"title":"POL Master","offer_id":44024179654690,"sku":"BB-8D-C7081PBO","price":652.91,"currency_code":"USD","in_stock":true},{"title":"Wilwood Master","offer_id":44024179687458,"sku":"BB-8D-C7081WB","price":702.91,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0811\/7642\/8578\/files\/Type_20F-8MilIi.jpg?v=1754109561"},{"product_id":"universal-black-out-series-power-brake-conversion-wilwood-master-cylinder-firewall-mount","title":"Universal Black Out Series Power Brake Conversion with POL or Wilwood Master Cylinder, Firewall Mount","description":"\u003cp\u003eOur Black Out power brake conversion is a universal fit and consists of a 9\" Black Booster and Black POL or Wilwood Master Cylinder and Black Out adjustable proportioning valve. This kit includes black powder coated brackets to add a nice professional detailed look to your classic. Improves stopping and driver performance tremendously.\u003c\/p\u003e\r\n","brand":"Performance Online (POL)","offers":[{"title":"POL Master","offer_id":44024196726818,"sku":"BBF-9S-UNIPBO","price":700.28,"currency_code":"USD","in_stock":true},{"title":"Wilwood Master","offer_id":44024196759586,"sku":"BBF-9S-UNIWB","price":750.28,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0811\/7642\/8578\/files\/Type_20B-02-hW4agK.jpg?v=1754109976"},{"product_id":"1964-72-pontiac-gto-black-out-power-brake-booster-with-wilwood-master-cylinder","title":"1964-72 Pontiac GTO Black Out Power Brake Booster with POL or Wilwood Master Cylinder","description":"\u003cp\u003eOur 1964-72 Pontiac GTO, LeMans and Tempest, Black Out Series POL or Wilwood power brake conversion mounts in the factory location. Greatly increases your stopping performance while making it easier on the driver. This kit includes a Black Out adjustable prop valve taking all the guess work out of the installation. Also makes going to rear disc brakes a snap without having to replace the existing valve found on most other kits. These components are a must when upgrading to disc brakes and come completely assembled, ready to install.\u003c\/p\u003e\n\u003cp\u003eSpecs:\u003c\/p\u003e\n\u003cp\u003eBlack Aluminum Wilwood\/POL dual chamber Master Cylinder\u003cbr\u003e1.00\" Piston Bore\u003cbr\u003eBlack Out adjustable prop valve\u003cbr\u003eBlack powder coated firewall brackets\u003cbr\u003ePedal push rod and clevis\u003cbr\u003eLine fittings and plugs\u003c\/p\u003e\n\u003cul\u003e\u003c\/ul\u003e","brand":"Performance Online (POL)","offers":[{"title":"Wilwood Master","offer_id":44024283758626,"sku":"BB-9S-C6472WBP","price":679.5,"currency_code":"USD","in_stock":true},{"title":"POL Master","offer_id":44024283791394,"sku":"BB-9S-C6472PPO","price":629.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0811\/7642\/8578\/files\/Type_20D-01_d01cf6d1-b283-4aed-b471-a7a21445367e.jpg?v=1764888260"},{"product_id":"1957-64-ford-f100-black-out-power-brake-booster-wilwood-master-cylinder","title":"1957-64 Ford F100 Black Out Power Brake Booster, POL or Wilwood Master Cylinder","description":"\u003cp\u003eOur Black Out power brake conversion for the 1957-64 Ford F100 trucks consists of a 9\" Black Booster and Black POL or Wilwood master cylinder and Black Out adjustable proportioning valve. Performance Online introduced this in 2013 and received a huge response. This kit contains a powder coated booster, Black POL or Wilwood high performance master cylinder, black adjustable proportioning valve and black powder coated brackets to add a nice professional detailed look to your classic. Improves stopping distances and driver performance tremendously.\u003c\/p\u003e","brand":"Performance Online (POL)","offers":[{"title":"Wilwood Master","offer_id":44024343920674,"sku":"BB-9S-T5764WB","price":679.5,"currency_code":"USD","in_stock":true},{"title":"POL Master","offer_id":44024343953442,"sku":"BB-9S-T5764PBO","price":629.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0811\/7642\/8578\/files\/Type_20A-IlHTYi.jpg?v=1754112559"},{"product_id":"1964-66-ford-mustang-black-out-power-brake-booster-with-wilwood-master-cylinder","title":"1964-66 Ford Mustang Black Out Power Brake Booster with Wilwood Master Cylinder","description":"\u003cp\u003e1964-66 Ford Mustang Black Out power brake conversion with 7\" Black Booster and Black Wilwood master cylinder. Performance Online introduced this item in April 2013 and received a huge response. This kits add a nice professional detailed look to your classic. Improves stopping distances and driver performance tremendously.\u003c\/p\u003e\r\n\r\n\u003cul\u003e\r\n\u003c\/ul\u003e\r\n\r\n\u003cp\u003e \u003c\/p\u003e\r\n","brand":"Performance Online (POL)","offers":[{"title":"Default Title","offer_id":44024802213922,"sku":"BB-7S-C6466MWB","price":629.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0811\/7642\/8578\/files\/image-ZBTO8C.png?v=1754119340"},{"product_id":"1962-67-chevy-nova-black-out-power-brake-booster-with-wilwood-master-cylinder","title":"1962-67 Chevy Nova Black Out Power Brake Booster with Wilwood Master Cylinder","description":"\u003cp\u003e1962-67 Chevy Nova Black Out power brake conversion with 9\" Black Booster and Black Wilwood master cylinder. Performance Online introduced this item in April 2013 and received a huge response. This kits add a nice professional detailed look to your classic. Improves stopping distances and driver performance tremendously.\u003c\/p\u003e\r\n\r\n\u003cul\u003e\r\n\u003c\/ul\u003e\r\n\r\n\u003cp\u003e \u003c\/p\u003e\r\n","brand":"Performance Online (POL)","offers":[{"title":"Default Title","offer_id":44024803033122,"sku":"BB-9S-C6267WB","price":662.62,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0811\/7642\/8578\/files\/BB-9S-C6267WB_700W-rsjLlZ.png?v=1754119358"},{"product_id":"1967-70-ford-mustang-blackout-power-brake-booster-with-wilwood-master-cylinder","title":"1967-70 Ford Mustang BlackOut Power Brake Booster with POL or Wilwood Master Cylinder","description":"\u003cp\u003eOur 1967-70 Ford Mustang Black Out Seires POL or Wilwood power brake conversion mounts in the factory location. Greatly increases your stopping performance while making it easier on the driver. This kit includes a Black Out adjustable prop valve taking all the guess work out of the installation. Also makes going to rear disc brakes a snap without having to replace the existing valve found on most other kits. These components are a must when upgrading to disc brakes and come completely assembled, ready to install.\u003cbr\u003e \r\n \u003c\/p\u003e \r\n \r\n\u003cul\u003e \r\n\u003c\/ul\u003e \r\n","brand":"Performance Online (POL)","offers":[{"title":"POL Master","offer_id":44024930369570,"sku":"BB-9S-C6770MPBO","price":629.5,"currency_code":"USD","in_stock":true},{"title":"Wilwood Master","offer_id":44024930402338,"sku":"BB-9S-C6770MWB","price":679.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0811\/7642\/8578\/files\/Type_20E.jpg?v=1765819612"},{"product_id":"1959-62-cadillac-black-out-series-power-brake-booster","title":"1959-62 Cadillac Black Out Series Power Brake Booster","description":"\u003cp\u003eOur BlackOut 1959-62 Cadillac Power Brake Booster Kit come pre-assembled and mounts in the factory location on the firewall. 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