Exhaust Exhaust Pipes, Systems and Components

Kooks Headers

FULL 3' SS CATTED X-PIPE. 1997-2004

$1,806.24

SKU: K009 21503211

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Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Description

The Kooks Full 3" Stainless Steel Catted X-Pipe is engineered to optimize exhaust flow in 1997-2004 Corvettes equipped with 5.7L LS1 or LS6 engines. It enhances horsepower and torque by improving scavenging between the exhaust banks. This product is designed for use exclusively with Kooks long tube headers and full 3" exhaust systems, making it an essential upgrade for enthusiasts seeking maximum performance gains. Crafted from high-grade 304 stainless steel, this X-pipe offers exceptional resistance to corrosion and heat. The full 3" tube diameter is consistent throughout, including the mid-pipes, designed to maintain optimal exhaust gas flow. The three-piece design ensures precise fitment and allows for ease of installation while maintaining a polished, performance-oriented appearance under the vehicle. Installation requires compatibility with Kooks long tube headers and a full 3" exhaust system for proper fit and function. The process is moderately challenging, typically needing mechanical experience but does not require drilling or permanent modifications. This product comes with a manufacturer's warranty to protect against defects in materials and workmanship for a defined period, ensuring buyer confidence.

Fitment

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Specifications

BrandKooks Headers
Part NumberK009 21503211

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Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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