Kooks 20-25 Chevrolet Corvette Stingray 6.2L V8 2in x 3in SS Headers w/ H.O Green Catted Connection

Kooks 2" x 3" Long Tube Headers & H.O. GREEN Catted OEM Connection Pipes for 2020–2025 Chevrolet Corvette C8 Stingray LT2 6.2L

The Kooks 2180H640 2-inch x 3-inch long tube headers and H.O. GREEN catted OEM connection pipes kit delivers the ultimate mid-engine exhaust upgrade for 2020–2025 Chevrolet Corvette C8 Stingray models with the LT2 6.2L V8, replacing factory manifolds to unlock dyno-proven gains of 40–60 rear-wheel horsepower and 35–55 lb-ft of torque through equal-length primaries, merged collectors, and high-flow 3-inch x 2-3/4-inch OEM outlet H.O. GREEN catted pipes that bolt directly to the factory exhaust for seamless integration and unrestricted flow from low-end torque to high-RPM redline.

Handcrafted from T304 aircraft-quality stainless steel with 3/8-inch laser-cut flanges, full TIG welds, and 400-cell metallic substrate H.O. GREEN catalytic converters, this system supports over 850 HP while remaining 49-state emissions compliant and preserving the C8's exotic flat-plane V8 soundtrack without drone. The precision design maintains factory ground clearance and heat shielding for daily-driven supercars without sacrificing the aggressive roar during track sessions or spirited drives.

For C8 Stingray owners who demand race-winning performance with street-legal reliability, the 2180H640 kit is the championship-proven, complete bolt-on solution trusted by Corvette enthusiasts worldwide.

Key Features

• 2-inch equal-length mandrel-bent primaries for maximum top-end power
• 3-inch x 2-3/4-inch OEM H.O. GREEN high-flow metallic catalytic converters
• Full T304 stainless steel with TIG welds and 3/8-inch flanges
• Merged collectors for optimal scavenging
• Direct bolt-on to factory exhaust no cutting required
• Dyno gains of 40–60 RWHP and 35–55 RWTQ on stock LT2

Product Notes

• 49-state EPA compliant not for sale or use in California or CARB states without exemption
• Fits all 2020–2025 Corvette C8 Stingray coupe and convertible with LT2 6.2L
• Includes O2 extensions and all necessary hardware

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 required lift and exhaust experience needed
• Remove factory manifolds and bolt headers to cylinder heads
• Connect catted pipes to collectors and OEM exhaust
• Torque flanges to 25-30 ft-lbs and run drive cycle for ECU adaptation

This Part Fits

Note: Fits all C8 Stingray coupe and convertible with factory exhaust. Manual or automatic.

What's Included in the Purchase

• (2) 2" x 3" Long-Tube T304 Stainless Headers with Merged Collectors
• (2) 3" x 2-3/4" OEM H.O. GREEN Catted Connection Pipes
• Gaskets, Stage 8 Locking Bolts, Clamps and Hardware
• O2 Sensor Extensions
• Detailed Installation Instructions
• Part Number: Kooks 2180H640

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 the 2025 Stingray?
  A: Yes, direct bolt-on for all 2020–2025 C8 Stingray with LT2 6.2L
• Q: Will it cause a check engine light?
  A: No, H.O. GREEN cats and extensions maintain proper O2 function
• Q: How loud is the exhaust?
  A: Exotic flat-plane V8 scream at high RPM, refined and drone-free at cruise

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.