Exhaust Headers and X-Pipe for Chevrolet Corvette C6 (2005-2013)

High-Flow Longtube Headers and X-Pipe for 2005-2013 Chevrolet Corvette

What it does: Replaces the restrictive factory cast iron exhaust manifolds and mid-pipe with tubular long-tube headers and an X-pipe to maximize exhaust scavenging and reduce backpressure.

The Stock Corvette Exhaust Bottleneck

The OEM C6 Corvette utilizes cast iron exhaust manifolds coupled to a restrictive factory mid-pipe with dense catalytic converters. These factory cast logs suffer from poor volumetric efficiency and thermal retention, leading to increased exhaust gas temperatures (EGTs) and localized cylinder head heat soak under sustained high-rpm loads. Furthermore, the uneven exhaust pulses colliding in the standard H-pipe create turbulence, impeding exhaust velocity and choking the LS engine's natural top-end power delivery.

The Engineering Solution

This long-tube header and 3-inch X-pipe package addresses these flow restrictions through precision tubular engineering. Constructed from heavy-gauge T-304 stainless steel, the 1 7/8-inch primary tubes provide an optimal cross-sectional area to maintain exhaust gas velocity while rapidly evacuating high-volume cylinder pressures. These primaries merge into race-oriented 3.00-inch collectors to drastically improve scavenging efficiency. The included 3-inch X-pipe synchronizes exhaust pulses from both engine banks, increasing the Venturi effect to pull exhaust gases from the cylinders faster. Finished with a polished surface and robust stainless flanges, this kit ensures a secure, leak-free seal utilizing the provided multi-layer steel gaskets, stainless brackets, heavy-duty 3.00-inch clamps, and the correct 12-piece hardened stainless steel manifold bolts.

Technical Specifications

Compatibility

• 2005-2007 Chevrolet Corvette Base (6.0L V8 LS2)
• 2008-2013 Chevrolet Corvette Base (6.2L V8 LS3)
• 2010-2013 Chevrolet Corvette Grand Sport (6.2L V8 LS3)
• 2006-2013 Chevrolet Corvette Z06 (7.0L V8 LS7)

The Chevrolet Caliber

Upgrading the C6 exhaust architecture yields an aggressive American V8 exhaust note while drastically improving the mid-range torque and high-rpm horsepower required for high-performance track driving and spirited street applications.