Fitment Information1967-1981 Chevrolet Camaro1964-1973 Chevrolet Chevelle1964-1987 Chevrolet El Camino1964-1983 Chevrolet Malibu1975-1987 Chevrolet Monte Carlo1969-1979 Chevrolet NovaOnly Fit Small Block 4.6L(283 CID), 4.9L(302 CID), 5.0L(305 CID), 5.3L(327 CID), 5.4L(330 CID) and 5.7L(350 CID) V8 Engine.SuncentAuto Performance Exhaust Header vs Original Factory ManifoldComparison Dimension✅ Suncent 1-7/8" Equal-Length Exhaust Manifold❌ Original Cast Iron Exhaust ManifoldHorsepower / Torque IncreaseHorsepower increase 8%~12%, torque increase 6%~10%No additional performance release under naturally aspirated conditionFull Equal-Length Tubing Design✅ Equal-length design, balanced exhaust flow pulsation, lower back pressure❌ Uneven lengths, exhaust from adjacent cylinders interferes with each otherAssembly WeightHigh-spec lightweight stainless steel, weight reduction 10~30 lbsHeavy cast iron, obvious front-end weight biasFuel Consumption PerformanceV6/V8 fuel efficiency improved by 5%Standard factory level, no additional optimizationExhaust SoundDeep and powerful high-RPM excitementDull with no highlightsCorrosion ResistanceT-304 stainless steel, resistant to high temperature and high humidityCast iron is prone to rustPackage Content:✅ SBC Exhaust Header x2✅ Exhaust Header Gasket x2✅ Exhaust Header Flange and Gasket x2✅ Exhaust Collector Adapter x2✅ Stud x20✅ Nut x6Designed for bolt-on installation, making the upgrade more convenient with the included hardware and accessories.Why Choose SuncentAuto Mid Length Exhaust Header�� More Configuration Options — The same brand offers various exhaust modification parts such as short headers and turbo kits, providing one-stop solutions for modification and upgrades.�� Complete Accessories, Ready to Install Upon Arrival — Includes easily overlooked small accessories such as gaskets and bolts, avoiding last-minute installation hassles.�� Excellent Feedback After Installation — Verified buyer Lenny B gave a five-star review: “Not only does it look beautiful, but after installation it fits like a glove, and the exhaust sound is extremely excellent.”�� Fast Delivery Across North America — Free shipping within the U.S. over 45 days of easy and worry-free returns and exchanges, making the shopping experience safe and hassle-free. ⬇️ Use Discount Coupons for Better Value ⬇️ �� Click to claim the latest SuncentAuto coupons and discount codes ��Claim Discount Code FAQs Can SuncentAuto Equal-Length Exhaust Manifold Achieve 100% Equal Length?Due to the actual space limitations of the engine bay and chassis, a completely 100% equal-length design may sometimes sacrifice installation compatibility. Therefore, we prioritize correct and non-destructive vehicle fitment first, while optimizing the equal-length layout as much as possible.How to Choose Long Tube / Mid-Length / Short Tube?Short tubes help improve low-to-mid RPM torque and are suitable for daily city driving with frequent stops and starts. Long tubes are more focused on high-RPM performance and exhaust sound balance, making them suitable for highway driving, track use, or drivers pursuing mid-to-high RPM power. Mid-length tubes provide a balanced overall performance between the two.Can I Return or Exchange the Product If I Am Not Satisfied After Receiving It?Yes. SuncentAuto provides a 45-day easy return and exchange policy, except for certain special situations. Please refer to the official website’s return and exchange policy for details.Does It Support Vehicle Fitment Check?Yes. After entering the product page, select “Check if this fits your vehicle” and fill in the year, make, model, submodel, engine, and other information. The system can help you confirm precise compatibility. Read More