{"product_id":"pacemaker-holden-hq-wb-253-308-competition-header-ph5225","title":"Pacemaker | Tuned Competition Headers | Holden HQ-WB 253-308 V8 | PH 5225 L\/R","description":"\u003ch2\u003ePacemaker Tuned Competition Headers - Holden HQ-HJ-HX-HZ-WB 253-308 V8 - PH 5225 L\/R\u003c\/h2\u003e\n\u003cp\u003eMaximize the power output of your classic Holden V8 with these Pacemaker Tuned Competition headers. Designed for the HQ through WB series fitted with 253 and 308 V8 engines, these headers feature a \"Tuned\" length design. This configuration is engineered to provide superior exhaust gas scavenging, resulting in significant horsepower and torque gains across the mid-to-high RPM range—perfect for street machining and competitive use.\u003c\/p\u003e\n\n\u003ch2\u003eFeatures:\u003c\/h2\u003e\n\u003cp\u003eThis product offers the following high-performance features:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eTuned Design:\u003c\/strong\u003e Specifically calculated primary pipe lengths to optimize engine breathing and peak performance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh-Flow Primaries:\u003c\/strong\u003e Large 1¾\" (44mm) primary pipes leading into a 3\" (76mm) outlet for maximum exhaust flow.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMandrel Bent:\u003c\/strong\u003e Precision mandrel-bent tubing ensures consistent diameter throughout the bend for unrestricted flow.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTransmission Versatility:\u003c\/strong\u003e Compatible with various performance gearboxes including Turbo 400 and Ford Toploader (with Hatfield bell housing).\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cdiv style=\"font-family: Arial, sans-serif; max-width: 100%; padding: 20px; border: 1px solid #ccc; border-radius: 5px; font-size: 14px; margin-bottom: 20px;\"\u003e\n\u003cstrong\u003eProduct Specifications for PH 5225\u003c\/strong\u003e\n\u003cdiv style=\"width: 100%; overflow-x: auto; margin-top: 10px;\"\u003e\n\u003ctable style=\"min-width: 800px; border-collapse: collapse; width: 100%;\"\u003e\n\u003cthead\u003e\n\u003ctr style=\"background-color: #f0f0f0; border-bottom: 2px solid #333;\"\u003e\n\u003cth style=\"padding: 10px 5px; text-align: left;\"\u003eFeature\u003c\/th\u003e\n\u003cth style=\"padding: 10px 5px; text-align: left;\"\u003eValue\u003c\/th\u003e\n\u003cth style=\"padding: 10px 5px; text-align: left;\"\u003eFeature\u003c\/th\u003e\n\u003cth style=\"padding: 10px 5px; text-align: left;\"\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px 5px; background-color: #f9f9f9; font-weight: bold;\"\u003ePart #\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 5px;\"\u003ePH 5225\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 5px; background-color: #f9f9f9; font-weight: bold;\"\u003eGasket\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 5px;\"\u003eDSF 9A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px 5px; background-color: #ffffff; font-weight: bold;\"\u003eP\/Steering\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 5px;\"\u003eYes\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 5px; background-color: #ffffff; font-weight: bold;\"\u003ePrimary Pipe\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 5px;\"\u003e1¾\" (44mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px 5px; background-color: #f9f9f9; font-weight: bold;\"\u003eAir Con\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 5px;\"\u003eNo\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 5px; background-color: #f9f9f9; font-weight: bold;\"\u003eSecondary Pipe\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 5px;\"\u003e-\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px 5px; background-color: #ffffff; font-weight: bold;\"\u003eOxy Sen\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 5px;\"\u003eN\/A\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 5px; background-color: #ffffff; font-weight: bold;\"\u003eOutlet\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 5px;\"\u003e3\" (76mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px 5px; background-color: #f9f9f9; font-weight: bold;\"\u003eE.G.R\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 5px;\"\u003eN\/A\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 5px; background-color: #f9f9f9; font-weight: bold;\"\u003eFitting Time\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 5px;\"\u003e2½ Hrs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px 5px; background-color: #ffffff; font-weight: bold;\"\u003eDesign\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 5px;\"\u003eTuned\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 5px; background-color: #ffffff; font-weight: bold;\"\u003eY Branch\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 5px;\"\u003eN\/A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eImportant Notes:\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eTransmission Fitment:\u003c\/strong\u003e Will fit Turbo 400 and Ford Toploader gearbox (with Hatfield bell housing).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClutch Compatibility:\u003c\/strong\u003e Will fit with HZ type cable clutch and Hydraulic Clutch conversions. Will NOT fit HQ type mechanical clutch.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExclusions:\u003c\/strong\u003e Will NOT fit column change automatic or manual vehicles. Will NOT fit Powerglide Auto.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAir Conditioning:\u003c\/strong\u003e This part is not compatible with Air Conditioning systems.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eImportant Information\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eThe image shown may not reflect the actual product\u003c\/li\u003e\n\u003cli\u003eShipping times may vary depending on destination and stock availability\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eVehicle Applications:\u003c\/h3\u003e\n\u003cdiv style=\"font-family: Arial, sans-serif; max-width: 100%; padding: 20px; border: 1px solid #ccc; border-radius: 5px; font-size: 14px;\"\u003e\n\u003cstrong\u003eVehicle Applications for PH 5225 L\/R\u003c\/strong\u003e\n\u003cdiv style=\"width: 100%; overflow-x: auto; margin-top: 10px;\"\u003e\n\u003ctable style=\"min-width: 900px; border-collapse: collapse; width: 100%;\"\u003e\n\u003cthead\u003e\n\u003ctr style=\"background-color: #f0f0f0; border-bottom: 2px solid #333;\"\u003e\n\u003cth style=\"padding: 10px 5px; text-align: left; white-space: nowrap;\"\u003eMake\u003c\/th\u003e\n\u003cth style=\"padding: 10px 5px; text-align: left; white-space: nowrap;\"\u003eModel\u003c\/th\u003e\n\u003cth style=\"padding: 10px 5px; text-align: left; white-space: nowrap;\"\u003eFrom\u003c\/th\u003e\n\u003cth style=\"padding: 10px 5px; text-align: left; white-space: nowrap;\"\u003eTo\u003c\/th\u003e\n\u003cth style=\"padding: 10px 5px; text-align: left; white-space: nowrap;\"\u003eBody\u003c\/th\u003e\n\u003cth style=\"padding: 10px 5px; text-align: left; white-space: nowrap;\"\u003eSeries\u003c\/th\u003e\n\u003cth style=\"padding: 10px 5px; text-align: left; white-space: nowrap;\"\u003eEngine\u003c\/th\u003e\n\u003cth style=\"padding: 10px 5px; text-align: left; white-space: nowrap;\"\u003eVariant\u003c\/th\u003e\n\u003cth style=\"padding: 10px 5px; text-align: left; white-space: nowrap;\"\u003eDrivetrain\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\u003ctd colspan=\"9\" style=\"padding: 8px 5px; background-color: #e9e9e9; font-weight: bold;\"\u003eHOLDEN\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px 5px; white-space: nowrap;\"\u003eHolden\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 5px; white-space: nowrap;\"\u003eKingswood \/ Monaro \/ Belmont\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 5px; white-space: nowrap;\"\u003e1971\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 5px; white-space: nowrap;\"\u003e1980\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 5px; white-space: nowrap;\"\u003eSedan \/ Coupe \/ Wagon \/ Ute\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 5px; white-space: nowrap;\"\u003eHQ, HJ, HX, HZ\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 5px; white-space: nowrap;\"\u003e253, 308 V8\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 5px; white-space: nowrap;\"\u003eFloor Shift Man \u0026amp; Auto\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 5px; white-space: nowrap;\"\u003eRWD\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px 5px; white-space: nowrap;\"\u003eHolden\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 5px; white-space: nowrap;\"\u003eStatesman \/ One Tonner\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 5px; white-space: nowrap;\"\u003e1980\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 5px; white-space: nowrap;\"\u003e1985\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 5px; white-space: nowrap;\"\u003eLWB Sedan \/ Cab-Chassis\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 5px; white-space: nowrap;\"\u003eWB\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 5px; white-space: nowrap;\"\u003e253, 308 V8\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 5px; white-space: nowrap;\"\u003eFloor Shift Man \u0026amp; Auto\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 5px; white-space: nowrap;\"\u003eRWD\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\n\u003cstyle\u003e\n.warranty-table-wrapper { overflow-x: auto; margin: 20px 0; }\n.warranty-table { width: 100%; border-collapse: collapse; font-family: Arial, sans-serif; font-size: 14px; min-width: 400px; }\n.warranty-table th { background-color: #111; color: #fff; text-align: left; padding: 12px; }\n.warranty-table td { padding: 12px; border-bottom: 1px solid #ddd; }\n.warranty-table tr:nth-child(even) { background-color: #f9f9f9; }\n.warranty-title { font-size: 18px; font-weight: bold; margin-bottom: 10px; font-family: Arial, sans-serif; margin-top: 25px; }\n\u003c\/style\u003e\n\n\u003cdiv class=\"warranty-title\"\u003eWarranty Information\u003c\/div\u003e\n\u003cdiv class=\"warranty-table-wrapper\"\u003e\n\u003ctable class=\"warranty-table\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eProduct\u003c\/th\u003e\n\u003cth\u003eWarranty Period\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003ePacemaker Headers\u003c\/td\u003e\n\u003ctd\u003eTwo (2) years.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePacemaker King Brown 4x4 Exhaust systems\u003c\/td\u003e\n\u003ctd\u003eFive (5) years.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePacemaker Sports exhaust systems\u003c\/td\u003e\n\u003ctd\u003eFive (5) years.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFabrication products and accessories\u003c\/td\u003e\n\u003ctd\u003eOne (1) year.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003cp\u003e\u003cstrong\u003ePayment \u0026amp; Security:\u003c\/strong\u003e\u003cbr\u003eYour payment information is processed securely. We do not store credit card details nor have access to your credit card information.\u003c\/p\u003e","brand":"Pacemaker Headers","offers":[{"title":"Default Title","offer_id":45735801323682,"sku":"PH5225 L\/R","price":1042.99,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0576\/1112\/4898\/files\/435c98f3-30f9-44ea-bf59-a529389dbe8f_6241f387-5be1-44f3-9e70-04a98236a712.png?v=1778735746","url":"https:\/\/nationaltowbars.com.au\/products\/pacemaker-holden-hq-wb-253-308-competition-header-ph5225","provider":"National Towbars Australia","version":"1.0","type":"link"}