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SKU: 2160H222 | UPC: 842422177829
Kooks 1-3/4" x 3" Long Tube Headers with Catted X-Pipe for 2009–2013 Chevrolet Corvette C6 LS3 6.2L
The Kooks 2160H222 1-3/4-inch long tube headers and catted X-pipe kit provides the full bolt-on exhaust upgrade for 2009–2013 Chevrolet Corvette C6 models with the LS3 6.2L V8. It replaces factory manifolds to deliver dyno-proven 40–55 rear-wheel horsepower and 35–50 lb-ft of torque gains through equal-length primaries, merged collectors, and a high-flow 3-inch catted X-pipe that connects directly to the 2-1/2-inch OEM exhaust.
Handcrafted from T304 stainless steel with laser-cut 3/8-inch flanges and full TIG welds, the system sharpens throttle response and adds a deep, aggressive V8 tone with no interior drone. It supports up to 650 HP while remaining 49-state emissions compliant.
Key Features
- 1-3/4-Inch Equal-Length Primaries Mandrel-bent for maximum scavenging and torque
- 3-Inch High-Flow Catted X-Pipe Metallic core rated for 650+ HP with OEM 2-1/2-inch outlet
- T304 Stainless Steel Full TIG welds and 16-gauge tubing for lifetime durability
- Merged Collectors Optimized flow for broader powerband
- Direct OEM Connection Bolts straight to factory exhaust without modifications
- Dyno Gains 40–55 RWHP and 35–50 RWTQ on stock LS3 6.2L
Product Notes
- 49-state EPA compliant. Not legal in California or CARB states
- Fits Base, Grand Sport, 505HP, and 60th Anniversary models with LS3 6.2L
- O2 sensor extensions included. Drive cycle required after install
- California Proposition 65 warning applies
Warranty Limited lifetime on stainless parts and 25,000 miles on catalysts
Installation Notes
- Professional installation recommended. Vehicle lift required
- Torque header bolts to 22-28 ft-lbs in stages using supplied Stage 8 hardware
- Connect X-pipe to factory section with included clamps and gaskets
- Recheck torque after first heat cycle and 100 miles
This Part Fits
| Year | Make | Model | Submodel/Engine |
|---|---|---|---|
| 2009–2013 | Chevrolet | Corvette | Base - LS3 6.2L V8 |
| 2010–2013 | Chevrolet | Corvette | Grand Sport - LS3 6.2L V8 |
| 2009–2013 | Chevrolet | Corvette | 505HP - LS3 6.2L V8 |
| 2013 | Chevrolet | Corvette | 60th Anniversary - LS3 6.2L V8 |
Note: Fits manual and automatic transmissions with factory LS3 6.2L. Excludes Z06/ZR1 with LS7/LS9.
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 Bolts, Clamps and Hardware
- O2 Sensor Extensions
- Installation Instructions
- Part Number: Kooks 2160H222
Why Choose Kooks?
- Over 60 years of championship-winning exhaust engineering
- Handcrafted in the USA from T304 aircraft-grade stainless
- Limited lifetime warranty and dyno-tested performance
Frequently Asked Questions
-
Q: Does this fit my 2011 Corvette Grand Sport LS3?
A: Yes, direct bolt-on for all 2009–2013 C6 LS3 models including Grand Sport -
Q: Will it cause a check engine light?
A: No, catted X-pipe and extensions keep all sensors in correct positions -
Q: How loud is it?
A: Deeper and louder at wide-open throttle, quiet and drone-free at cruise
Shipping & Handling
- Method: Ground UPS or FedEx.
- Availability: Typically ships same day or next if in stock.
- Packaging: Heavy-duty Box with foam protection
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