{"product_id":"exhaust-header-for-mazda-rx-8-2004-2011-1-3l","title":"Exhaust Header for Mazda RX-8 (2004-2011) 1.3L","description":"\u003ch2\u003eHigh-Flow Performance Exhaust Header for 2004-2011 Mazda RX-8\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat it Does:\u003c\/strong\u003e The Performance Exhaust Header replaces the restrictive factory exhaust manifold on the 2004-2011 Mazda RX-8 to reduce exhaust backpressure and optimize scavenging on the high-revving rotary powerplant.\u003c\/p\u003e\n\n\u003ch3\u003eThe Stock Mazda RX-8 Thermal and Flow Bottleneck\u003c\/h3\u003e\n\u003cp\u003eThe factory cast-iron exhaust manifold on the \u003cstrong\u003eSE3P\u003c\/strong\u003e chassis suffers from abrupt runner transitions, uneven interior wall friction, and high thermal mass. The \u003cstrong\u003e13B-MSP Renesis\u003c\/strong\u003e rotary generates exhaust gas temperatures (EGTs) substantially higher than conventional piston engines. Under track or high-load driving, the OEM cast unit retains excessive heat directly against the rotor housing ports, inducing thermal stress and creating turbulent exhaust backpressure that stifles volumetric efficiency above 6,000 RPM.\u003c\/p\u003e\n\n\u003ch3\u003eThe Engineering Solution\u003c\/h3\u003e\n\u003cp\u003eThis upgraded header utilizes smooth, mandrel-bent stainless steel primary tubes engineered to equalize exhaust gas velocity from the peripheral exhaust ports. Precision-machined, warp-resistant mounting flanges and heavy-duty welded joints prevent flange distortion under extreme rotary thermal cycles. By smoothing collector transitions and maximizing exhaust scavenging, this manifold accelerates gas extraction, reduces under-hood heat soak, and maintains peak power through the 9,000 RPM redline while integrating standard O2 sensor bungs for straightforward installation.\u003c\/p\u003e\n\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable width=\"100%\" style=\"border-collapse: collapse; border: 1px solid #e0e0e0; font-size: 14px; margin-bottom: 20px;\"\u003e\n  \u003ctr style=\"background-color: #f9f9f9;\"\u003e\n\u003cth style=\"padding:10px; text-align: left; border: 1px solid #e0e0e0;\"\u003eFitment\u003c\/th\u003e\n\u003ctd style=\"padding:10px; border: 1px solid #e0e0e0;\"\u003e2004-2011 Mazda RX-8\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003cth style=\"padding:10px; text-align: left; border: 1px solid #e0e0e0;\"\u003eEngine \/ Chassis\u003c\/th\u003e\n\u003ctd style=\"padding:10px; border: 1px solid #e0e0e0;\"\u003e1.3L 13B-MSP Renesis \/ SE3P\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr style=\"background-color: #f9f9f9;\"\u003e\n\u003cth style=\"padding:10px; text-align: left; border: 1px solid #e0e0e0;\"\u003eStock Output\u003c\/th\u003e\n\u003ctd style=\"padding:10px; border: 1px solid #e0e0e0;\"\u003e197-238 hp \/ 159-164 lb-ft\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003cth style=\"padding:10px; text-align: left; border: 1px solid #e0e0e0;\"\u003eReplaces OEM Part #\u003c\/th\u003e\n\u003ctd style=\"padding:10px; border: 1px solid #e0e0e0;\"\u003eN\/A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eCompatibility\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e2004-2011 Mazda RX-8 1.3L Renesis Rotary (Base, Shinka, Grand Touring, Sport, Touring, R3)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eDoes this fit the SE3P RX-8?\u003c\/strong\u003e\u003cbr\u003e Yes, this is a direct fit for the 2004-2011 Mazda RX-8 equipped with the \u003cstrong\u003e13B-MSP Renesis\u003c\/strong\u003e engine.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes this header maintain factory oxygen sensor locations?\u003c\/strong\u003e\u003cbr\u003e Yes, it features integrated bungs positioned in factory-spec locations to clear chassis components and accommodate OEM O2 sensors without harness splicing.\u003c\/p\u003e\n\n\u003ch3\u003eThe Mazda Rotary Caliber\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003e13B-MSP Renesis\u003c\/strong\u003e platform relies entirely on clean gas evacuation to sustain high-RPM power and rotary apex seal reliability. This stainless header eliminates thermal bottlenecks and yields a crisp, resonant rotary exhaust note under full throttle.\u003c\/p\u003e","brand":"VelocityMax","offers":[{"title":"Default Title","offer_id":50606581383416,"sku":"DS-ESC1VAPZO","price":209.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/1290\/2648\/files\/exhaust-header-for-mazda-rx-8-2004-2011-1-3l-1.jpg?v=1790090603","url":"https:\/\/performancechiptuning.com\/es\/products\/exhaust-header-for-mazda-rx-8-2004-2011-1-3l","provider":"Performance Chip Tuning","version":"1.0","type":"link"}