{"product_id":"exhaust-header-for-chevrolet-cavalier-pontiac-sunfire-1995-2002-2-2l","title":"Exhaust Header for Chevrolet Cavalier Pontiac Sunfire (1995-2002) 2.2L","description":"\u003ch2\u003eHigh-Flow Stainless Exhaust Header for 1995-2002 Chevrolet,Pontiac Cavalier,Sunfire\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat it Does:\u003c\/strong\u003e The performance exhaust header replaces the restrictive cast-iron exhaust manifold on the 1995-2002 Cavalier and Sunfire to accelerate exhaust gas scavenging, decrease backpressure, and improve engine breathing efficiency.\u003c\/p\u003e\n\n\u003ch3\u003eThe Stock Chevrolet,Pontiac Cavalier,Sunfire Exhaust Flow Restriction\u003c\/h3\u003e\n\u003cp\u003eFactory exhaust manifolds fitted to the third-generation GM \u003cstrong\u003eJ-body\u003c\/strong\u003e platform rely on restrictive, log-style cast iron runners. This stock design restricts exhaust velocity and traps excessive thermal mass against the cylinder head of the \u003cstrong\u003eLN2\u003c\/strong\u003e 2.2L pushrod engine. Over years of thermal cycling, these OEM cast manifolds consistently suffer from stress cracks, warped mating flanges, and blown manifold gaskets, creating audible exhaust leaks and degrading oxygen sensor accuracy.\u003c\/p\u003e\n\n\u003ch3\u003eThe Engineering Solution\u003c\/h3\u003e\n\u003cp\u003eManufactured from high-grade polished \u003cstrong\u003eT-304 stainless steel\u003c\/strong\u003e, this performance header replaces restrictive factory casting with mandrel-bent primary tubes engineered for uniform internal diameter and laminar exhaust evacuation. Precision TIG welds provide structural durability under thermal expansion, while thick, CNC-machined mounting flanges prevent surface distortion and exhaust gas blow-by. Integrated sensor ports accommodate factory emissions monitoring, providing a reliable bolt-on upgrade without modifying chassis linkage.\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;\"\u003e1995-2002 Chevrolet Cavalier, Pontiac Sunfire\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;\"\u003e\n\u003cstrong\u003eLN2\u003c\/strong\u003e 2.2L OHV I4 \/ \u003cstrong\u003eJ-body\u003c\/strong\u003e\n\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;\"\u003e120 hp \/ 135 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;\"\u003eSPT-EHD1339\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eCompatibility\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e1995-2002 Chevrolet Cavalier 2.2L L4 (Base, LS, RS)\u003c\/li\u003e\n  \u003cli\u003e1995-2002 Pontiac Sunfire 2.2L L4 (Base, SE)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eDoes this fit the J-body Cavalier,Sunfire?\u003c\/strong\u003e\u003cbr\u003e Yes, this is a direct fit for the 1995-2002 Chevrolet,Pontiac Cavalier,Sunfire equipped with the \u003cstrong\u003eLN2\u003c\/strong\u003e 2.2L engine.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWill this require an aftermarket ECU tune or throw a Check Engine Light?\u003c\/strong\u003e\u003cbr\u003e No recalibration is required, as the factory O2 sensor bungs are maintained in their native exhaust stream locations.\u003c\/p\u003e\n\n\u003ch3\u003eThe Chevrolet,Pontiac Domestic Tuner Standard\u003c\/h3\u003e\n\u003cp\u003eBuilt for sport compact longevity, this stainless header optimizes exhaust tone and scavenges high-rpm backpressure, giving your domestic 4-cylinder platform the heat resistance and structural integrity demanded on the street.\u003c\/p\u003e","brand":"VelocityMax","offers":[{"title":"Default Title","offer_id":50606809514232,"sku":"DS-E3XANXBCE","price":249.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/1290\/2648\/files\/exhaust-header-for-chevrolet-cavalier-pontiac-sunfire-1995-2002-2-2l-1.jpg?v=1790090750","url":"https:\/\/performancechiptuning.com\/fr\/products\/exhaust-header-for-chevrolet-cavalier-pontiac-sunfire-1995-2002-2-2l","provider":"Performance Chip Tuning","version":"1.0","type":"link"}