{"product_id":"porterfield-gd557","title":"Porterfield GD557 Brake Pads","description":"\u003cdiv class=\"manufacturer-description\"\u003e\n\u003cp\u003ePorterfield Brakes are race-bred friction designed and proven on the track. Each set is precision-cut from premium friction material and developed for high-temperature durability, fade resistance, and consistent pedal feel.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAvailable Compound Options for this Fitment:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eR-4 — The original road racing compound that is very rotor friendly and easy to modulate. Medium friction with a 0–1200°F temperature range; optimum 350°F–900°F. \u003cstrong\u003eNot for street use.\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eR4-E — The Endurance compound. Slightly lower friction than the R-4 but designed to wear longer for endurance races (4–6 hour). Characteristics are otherwise much the same as R-4. \u003cstrong\u003eNot for street use.\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eR4-1 — The Vintage compound. Designed for vehicles that struggle to keep heat in the pads. Best when temps are under 600°F and peak temps stay below 1000°F. Also popular as an autocross pad. \u003cstrong\u003eNot for street use.\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eR4-S — The performance street pad. Lowest dust and squeal of any street pad in the Porterfield line, very rotor friendly, and lasts as long as (or slightly longer than) stock pads. \u003cstrong\u003eNot for track use.\u003c\/strong\u003e \u003cstrong\u003eNot for use with CCM discs.\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eVehicle Fitment\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAxle Set of 4 Pieces REAR\u003c\/strong\u003e\u003c\/p\u003e\n\u003ctable style=\"width:100%; border-collapse:collapse;\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth style=\"text-align:left; padding:6px; border-bottom:1px solid #ccc;\"\u003eMake\u003c\/th\u003e\n\u003cth style=\"text-align:left; padding:6px; border-bottom:1px solid #ccc;\"\u003eVehicle Applications\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:6px; vertical-align:top; font-weight:bold;\"\u003eAc\u003c\/td\u003e\n\u003ctd style=\"padding:6px;\"\u003e63-68 Cobra, 1958 Two Litre\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:6px; vertical-align:top; font-weight:bold;\"\u003eAlfa Romeo\u003c\/td\u003e\n\u003ctd style=\"padding:6px;\"\u003e63-68 2600, 1963 Giulia, 1963 Giulia Sprint\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:6px; vertical-align:top; font-weight:bold;\"\u003eAston Martin\u003c\/td\u003e\n\u003ctd style=\"padding:6px;\"\u003e63-65 DB5, 65-70 DB6, 67-71 DBS, 69-89 V8, 79-89 Lagonda, 72-74 Vantage, 1989 Virage, 78-89 Volante\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:6px; vertical-align:top; font-weight:bold;\"\u003eDelorean\u003c\/td\u003e\n\u003ctd style=\"padding:6px;\"\u003e81-83 DMC-12\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:6px; vertical-align:top; font-weight:bold;\"\u003eFerrari\u003c\/td\u003e\n\u003ctd style=\"padding:6px;\"\u003e68 275GT, 67-68 275GTB, 67-68 275 GTS, 67-68 330 GT, 67-68 330 GTC, 67-68 330 GTS, 67-71 365GT, 72-75 365 GT4, 69-73 365 GTB\/4, 68-72 365 GTC, 68-70 365 GTS, 70-74 365 GTS\/4, 67-69 DINO 206 GT\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:6px; vertical-align:top; font-weight:bold;\"\u003eJaguar\u003c\/td\u003e\n\u003ctd style=\"padding:6px;\"\u003e67-68 420, 82-86 Vanden Plas, 68-71 XJ, 73-86 XJ12, 73-87 XJ6, 1993 XJRS, 76-93 XJS, 69-74 XKE\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:6px; vertical-align:top; font-weight:bold;\"\u003eLamborghini\u003c\/td\u003e\n\u003ctd style=\"padding:6px;\"\u003e64-67 350gt, 68-69 Espada, 68-70 Islero, 1970 Jarma, 66-70 Miura\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:6px; vertical-align:top; font-weight:bold;\"\u003eMaserati\u003c\/td\u003e\n\u003ctd style=\"padding:6px;\"\u003e61-64 3500gt, 67-73 Ghibli, 69-74 Indy, 74-79 Khamsin, 66-73 Mexico, 68-70 Mistral, 64-70 Quattroporte, 63-66 Sebring\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:6px; vertical-align:top; font-weight:bold;\"\u003eShelby\u003c\/td\u003e\n\u003ctd style=\"padding:6px;\"\u003e63-68 Cobra\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cem\u003eAll Porterfield Brakes products carry the manufacturer's standard warranty. Race compounds are not for street use.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Porterfield","offers":[{"title":"R-4","offer_id":53178848248171,"sku":"GD557 R-4","price":277.95,"currency_code":"CAD","in_stock":true},{"title":"R4-E","offer_id":53178848280939,"sku":"GD557 R4-E","price":277.95,"currency_code":"CAD","in_stock":true},{"title":"R4-1","offer_id":53178848313707,"sku":"GD557 R4-1","price":277.95,"currency_code":"CAD","in_stock":true},{"title":"R4-S","offer_id":53178848346475,"sku":"GD557 R4-S","price":169.95,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/9690\/4998\/files\/porterfieldbrake_pads.1.webp?v=1778033394","url":"https:\/\/www.raptorracing.ca\/products\/porterfield-gd557","provider":"Raptor Racing","version":"1.0","type":"link"}