Kooks 2161H421 1-7/8" x 3" Long-Tube Header & Catted X-Pipe Kit 06-13 Corvette

Vehicle Fitment

• 2006-2013 Chevrolet Corvette Z06 (7.0 L LS7 V8) - C6 platform

Features

• Premium T304 stainless steel long-tube headers for maximum durability and performance.
• 1-7/8" primary tubing transitioning to 3" collector for optimized exhaust flow.
• Includes 3" x 3" catted stainless X-pipe for improved scavenging and emissions compatibility.
• Mandrel-bent design ensures smooth transitions and minimal back-pressure.
• Direct-fit design for C6 Corvette Z06, utilizing OEM mounting points.
• Handcrafted in the USA with premium welds and construction quality.
• Backed by a limited lifetime warranty from Kooks.
• Not CARB legal - for off-road or competition use in states with strict emissions laws.

Specifications

• Primary Tube Diameter: 1.875" (1-7/8")
• Collector/Outlet Diameter: 3.00"
• Material: T304 stainless steel
• Engine Compatibility: 7.0 L LS7 V8 only
• Fitment Years: 2006-2013 C6 Corvette Z06 - 2024+ coverage unconfirmed at time of listing.
• Platform: C6 (Chevrolet Corvette) Z06 variant
• Emissions Compliance: Not CARB exempt / not legal for sale or use in California and similar states.

Included Components

• 1x Left-bank long-tube header assembly
• 1x Right-bank long-tube header assembly
• 1x 3" x 3" catted stainless X-pipe connection kit
• Hardware package including gaskets, bolts and installation accessories

Product Description

The Kooks 2161H421 long-tube header and catted X-pipe kit is engineered specifically for the 2006-2013 Chevrolet Corvette Z06 with the 7.0 L LS7 engine. This full-system upgrade replaces the factory manifold and mid-section exhaust components with high-flow 1-7/8" headers and a 3" catted X-pipe, designed to improve exhaust flow, reduce back-pressure, and unlock increased horsepower and torque across the powerband.

Constructed from premium T304 stainless steel and handcrafted in the USA, this kit delivers both performance and durability. The incorporation of the catted X-pipe enables compatibility with the original 3" OEM exhaust system, ensuring a clean integration. Because this is an emissions-sensitive performance part, it is not CARB exempt - installation in states with stringent emissions regulations may be restricted.

For Corvette Z06 owners seeking a top-tier exhaust upgrade with proven results, the Kooks 2161H421 offers an excellent choice. Verify your vehicle is the Z06 variant and falls within the 2006-2013 fitment years before ordering, and be aware of local emissions compliance requirements prior to installation.