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SKU: 2160H221 | UPC: 842422177812
Kooks 1-3/4" x 3" Long Tube Headers & Catted X-Pipe for 2005–2008 Chevrolet Corvette C6 LS2 6.0L & 2008 LS3 6.2L
The Kooks 2160H221 1-3/4-inch long tube headers and catted X-pipe kit delivers the perfect torque-focused bolt-on exhaust upgrade for 2005–2008 Corvette C6 base models with the LS2 6.0L or early LS3 6.2L V8, replacing factory manifolds to unlock dyno-proven gains of 35–50 rear-wheel horsepower and 25–40 lb-ft of torque through equal-length primaries, merged collectors, and a high-flow 3-inch x 3-inch x 2-1/2-inch OEM catted X-pipe that connects directly to the factory exhaust for seamless integration and unrestricted flow across the entire RPM range.
Handcrafted from T304 aircraft-quality stainless steel with 3/8-inch laser-cut flanges, full TIG welds, and 300-cell metallic substrate catalytic converters, this system ensures 49-state emissions compliance while supporting up to 650 HP from cams or bolt-ons. The precision engineering maintains factory ground clearance and heat shielding for daily-driven C6s without compromising the deep, aggressive V8 soundtrack that defines the early C6 era.
For 2005–2008 C6 base Corvette owners who demand track-proven performance with street-legal reliability, the 2160H221 kit is the championship-proven, complete bolt-on solution trusted by LS enthusiasts worldwide.
Key Features
- 1-3/4-inch equal-length mandrel-bent primaries for strong low-end torque
- 3-inch x 3-inch x 2-1/2-inch OEM catted X-pipe with high-flow metallic substrate
- Full T304 stainless steel with TIG welds and 3/8-inch flanges
- Merged collectors for optimal exhaust velocity
- Direct connection to 2-1/2-inch OEM exhaust no cutting required
- Dyno gains of 35–50 RWHP and 25–40 RWTQ on stock LS2/LS3
Product Notes
- 49-state EPA compliant not for sale or use in California or CARB states without exemption
- Fits 2005–2007 C6 with LS2 6.0L and 2008 C6 with LS3 6.2L
- Includes O2 sensor fittings and air tube provisions for emissions
California Proposition 65: Contains chemicals known to the State of California to cause cancer or reproductive harm.
Warranty: Limited lifetime on stainless construction and 25,000 miles on catalytic converters to original purchaser.
Installation Notes
- Professional installation recommended lift required
- Remove factory manifolds and bolt headers to cylinder heads
- Connect X-pipe to collectors and OEM exhaust with supplied hardware
- Torque flanges to 25-30 ft-lbs and run drive cycle for ECU adaptation
This Part Fits
| Year | Make | Model | Submodel/Engine |
|---|---|---|---|
| 2005–2007 | Chevrolet | Corvette | Base - LS2 6.0L |
| 2008 | Chevrolet | Corvette | Base - LS3 6.2L |
Note: Fits all C6 base coupe and convertible with factory exhaust. Manual or automatic.
What's Included in the Purchase
- (2) 1-3/4" x 3" Long-Tube T304 Stainless Headers with Merged Collectors
- (1) 3" x 3" x 2-1/2" Catted Stainless X-Pipe
- Gaskets, Stage 8 Locking Header Bolts, Clamps and Hardware
- O2 Sensor Extensions and Fittings
- Detailed Installation Instructions
- Part Number: Kooks 2160H221
Why Choose Kooks?
- Over 60 years of championship-winning exhaust engineering
- Handcrafted in the USA from T304 aircraft-quality stainless steel
- Limited lifetime warranty and dyno-proven performance
Frequently Asked Questions
-
Q: Does this fit my 2006 C6 manual?
A: Yes, direct bolt-on for all 2005–2008 C6 base models manual or auto -
Q: Will it cause a check engine light?
A: No, catted X-pipe and included extensions keep sensors in position -
Q: How loud is the exhaust?
A: Deep aggressive V8 rumble, refined without drone at highway speeds
Shipping & Handling
- Method: UPS or Fed Ex Ground.
- Availability: Typically ships same day or next if in stock.
- Packaging: Heavy-duty box with foam protection.
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