C6 Corvette Kooks Headers 1-7/8 with High Flow Cats (2005-2013)

C6 Corvette KOOKS Headers 1-7/8" with High Flow Cats (2005–2013)

If you want a noticeable performance improvement on a C6 Corvette, long tube headers are one of the upgrades drivers feel immediately. The KOOKS 1-7/8" long tube headers with high flow cats are engineered for 2005–2013 C6 Corvette Base and Grand Sport models equipped with the LS2 or LS3 engine. This is a street-focused, catted header system designed to improve exhaust scavenging, sharpen throttle response, and deliver a deeper exhaust tone under load.

Product Details

• KOOKS long tube header system with high flow cats
• Designed for C6 Corvette Base and Grand Sport models
• Engine-specific fitment for LS2 and LS3 platforms
• 1-7/8" primary tubes with 3" collectors
• Street-friendly catted configuration
• Manual and automatic transmission compatible

Why KOOKS Leads in C6 Corvette Header Design

The C6 Corvette platform responds extremely well to improved exhaust flow. Compared to factory manifolds, KOOKS long tube headers increase primary length and improve scavenging, which helps the LS2 and LS3 engines breathe more efficiently through the midrange. Many C6 owners ask whether headers are worth it on a mostly stock car—once properly tuned, the improvement in throttle response and overall pull is immediately noticeable.

Benefits

• Stronger midrange response for street driving
• Improved exhaust flow over factory manifolds
• Deeper, more aggressive exhaust character under throttle
• Engine-specific design for LS2 and LS3 platforms
• 304 stainless steel construction for long-term durability

What to Expect After Installation

After installation, most C6 Corvette owners notice a sharper throttle feel and a more authoritative exhaust tone. If you’re concerned about sound levels, overall volume and drone characteristics are largely determined by the rear exhaust system paired with the headers.

• More pronounced exhaust tone under acceleration
• Improved engine response once tuned
• Enhanced driving engagement on the street

Technical Specifications

• LS2 Applications (2005–2008): KOOKS Part Number 2160H421
• LS3 Applications (2009–2013): KOOKS Part Number 2160H422
• Primary Tube Diameter: 1-7/8"
• Collector Diameter: 3"
• Material: 304 stainless steel
• Vehicle Platform: C6 Corvette Base and Grand Sport

Installation Overview

This system fits the 2005–2013 C6 Corvette Base and Grand Sport when the correct engine-specific part number is selected. Installation is considered advanced due to access, fastener clearance, and exhaust alignment.

• Direct-fit installation for C6 Corvette Base and Grand Sport
• No cutting or welding required with proper configuration
• O2 sensor routing and heat management required
• Professional installation recommended

Tuning requirement: C6 Corvette LS2 and LS3 engines require tuning after installing long tube headers. Avoid hard driving until the vehicle is properly calibrated.

Corvette Compatibility

• C6 Corvette Base (LS2): 2005–2008
• C6 Corvette Base (LS3): 2009–2013
• C6 Corvette Grand Sport (LS3): 2010–2013
• Transmission: Manual and automatic

Cross-Compatibility & Related Fitment

• Designed for C6 Corvette Base and Grand Sport models
• Not compatible with C6 Corvette Z06 (LS7)
• Not compatible with C6 Corvette ZR1 (LS9)
• Not compatible with C5 or C7 Corvette platforms

Testimonials

“The difference in throttle response and sound was night and day after tuning. Exactly what my C6 needed.”

Since 2007, CCA has specialized in Corvette-specific performance parts, helping owners choose platform-correct upgrades with confidence.

KOOKS long tube headers 2160H421 and 2160H422 are one of the best upgrades for C6 Corvette owners who want improved response and a more aggressive exhaust character. Order today for fast nationwide shipping on in-stock items.