1-5/8" Exhaust Header For 2000-2016 Silverado Sierra 1500 2500/3500HD 4.8 5.3 6.0 V8 | Suncent®

Fitment Information2002-2009 Chevrolet Silverado 15002000-2004 Chevrolet Silverado 25002002-2016 Chevrolet Silverado 2500 HD2001-2006 Chevrolet Silverado 35002007-2016 Chevrolet Silverado 3500 HD2000-2004 GMC Sierra 25002001-2006 GMC Sierra 3500Only Fit Vortec 4800 5300 6000 V8 Engine.SuncentAuto Exhaust Header vs Stock Exhaust ManifoldComparisonSuncent® High Performance Exhaust HeaderStock Cast Iron Exhaust ManifoldMaterial & StructureT-304 stainless steel, 1-5/8″ primary tube, 2-1/2″ outlet, laser-cut 3/8″ thick steel flangeCast iron, restricted original size passages, thin cast flangePerformanceSignificantly reduced back pressure, smoother exhaust flow, expected 15–25 HP increase, torque increase across entire RPM rangeHigher back pressure, restricts engine breathing efficiency, no additional gain, conservative factory calibrationSound & HeatClearer, more aggressive exhaust note; quickly expels high-temperature exhaust gas, lowers engine bay temperaturePlain factory exhaust sound, noticeable heat buildupWeight & Fuel EconomyLightweight stainless steel design, reduces weight by 10-30 lbs; can improve fuel efficiency by 3–5�st iron is heavier, factory level fuel economyInstallation & AppearanceBolt-on, no welding required; chrome polished finish, improves engine bay lookMore complex disassembly/assembly, factory cast iron appearancePerformance data based on typical modification environments. Actual gains vary by vehicle model, engine condition, and accompanying modifications.Package Content & Installation NotesWhat's Included in the box:✅ Vortec exhaust manifold x2✅ Exhaust manifold gasket x2✅ Outlet flange gasket x1✅ Bolt kit (screws x18 and nuts x6)Installation Tips:Professional advice - It is strongly recommended that installation be performed by an experienced modification technician or professional mechanic. The exhaust system involves high temperatures, sealing, and emissions regulations; installation quality directly affects performance and safety.Gasket replacement - Every time you replace the exhaust manifold, be sure to install a new exhaust manifold gasket to ensure sealing integrity.Break-in period notes - During the first drives after installation, listen for any abnormal noises, exhaust leaks, or check engine light warnings.Why Buy Exhaust Header from SuncentAuto?���� US local warehouse, fast shipping — Suncent has local warehouses in the US, providing fast delivery service throughout the continental US, say goodbye to long overseas transit times.�� Free shipping on all orders — All orders within the continental US enjoy free shipping.�� 45-day worry-free returns — Return requests can be made within 45 days of receipt, provided the product remains unused and includes all original packaging and accessories. After-sales protection gives you peace of mind.�� ISO9001:2015 certified — Product quality system is guaranteed; every set of exhaust headers undergoes strict quality control and inspection procedures.�� One-stop shopping experience — From exhaust headers to cold air intakes, from aftermarket upgrade parts to OEM replacements, the Suncent platform covers a wide range of categories, so you don't have to search multiple places to get all the parts you need for your vehicle upgrade.Ready to Unlock Your Silverado's True Potential?Increase horsepower · Optimize response · Experience a new driving passionWhether it's daily commuting, heavy towing, or track driving, the Suncent® high-performance exhaust header helps your Vortec V8 engine unleash more powerful performance.�� Buy now, order today and enjoy an exhilarating driving experience sooner!Get Discount Codes FAQs Will the Check Engine light come on after installation?Generally no. This product retains the factory oxygen sensor mounting positions and maintains a reasonable exhaust back pressure range. However, if your vehicle's ECU is very sensitive to air-fuel ratio, it is recommended to perform an ECU reset or professional tuning after installation.Will this header be louder than the factory exhaust manifold?The sound becomes clearer and more performance-oriented, with an increase of about 3‑6 dB at idle and low RPM, and a more solid exhaust note at high RPM. But it does not produce harsh noise or "rasp," and there is no increase in resonance (under normal installation conditions).Can these exhaust manifolds increase horsepower?They are designed to improve exhaust flow and reduce restriction, which can help increase horsepower, torque, and throttle response. Actual results may vary depending on vehicle configuration and other modifications.Is this a short header or a long header? What is the difference between the two?This is a shorty header. Short header: improves mid-to-low end torque, directly replaces the factory part, easy installation, moderate sound. Long header: improves high-RPM horsepower, requires exhaust modification, complex installation, loud sound and may affect ground clearance. Read More