Description
The 2014-2017 Chevy SS Sedan is a modern muscle icon, but the factory exhaust manifold is the biggest bottleneck for the 6.2L LS3 engine. The Speed Engineering 2" Longtube Headers are the ultimate solution for owners who demand maximum flow and a deep, aggressive V8 growl.
While most off-the-shelf headers stop at 1-7/8", these massive 2" primaries are purpose-built for the SS Sedan owner looking to push past 500+ horsepower. Whether you are running a high-lift cam, a Magnuson/ProCharger setup, or a full 416 stroker, these headers provide the exhaust scavenging needed to let your LS3 breathe.
Why Choose 2-Inch Primaries?
Most competitors offer the smaller 1-7/8" tubes as a standard. We offer the 2" version specifically for high-performance builds. The larger diameter reduces backpressure more effectively at high RPMs, ensuring that your top-end power doesn't plateau.
Applications:
2008-2009 Pontiac G8 (6.0L & 6.2L Engines)
Key Performance Features
Massive 2" Primary Tubing: High-flow mandrel-bent design specifically for the LS3 V8.
Integrated Collector Spikes: Smooths exhaust turbulence inside the 3" collector for increased velocity and scavenging.
True 304 Stainless Steel: Natural finish 304 stainless offers superior heat management and corrosion resistance over cheaper 409 or aluminized alternatives.
Precision CNC Flanges: 3/8" thick flanges ensure a warp-free, leak-free seal against the cylinder heads.
Direct LS3 Fitment: Engineered to clear the factory steering shaft, oil cooler, and subframe without modification.
Technical Specifications
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Primary Diameter: 2.0 Inches
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Collector Diameter: 3.0 Inches
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Tubing Material: 304 Stainless Steel
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Manufacturing: Mandrel Bent & TIG Welded
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Gains: 25-30 RWHP (Tune recommended for maximum results)
Installation Note: To complete your exhaust system, we highly recommend pairing these headers with the Speed Engineering Off-Road X-Pipe. This ensures a seamless bolt-on experience without the need for custom fabrication.
(Warning) This is a RACE ONLY product manufactured and sold for installation on vehicles to be used solely for competition purposes. Once this part is installed, the vehicle may never be used, or registered or licensed for use, on a public road or highway. If you install this part on your vehicle and use the vehicle on a public road or highway, you will violate the Clean Air Act 203(a)(3), 42 U.S.C, 7522(a)(3) and may be subject to personal civil or criminal liability.
NOT FOR SALE OR USE IN CALIFORNIA
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