Kooks 98-02 Chevrolet Camaro Z28 SS/Pontiac Firebird Trans Am 1-7/8 x 3 Header & Catted Y-Pipe Kit

Kooks 1-7/8" x 3" Long Tube Headers & Catted Y-Pipe Kit for 1998–2002 Chevrolet Camaro SS & Pontiac Firebird Trans Am 5.7L LS1

The Kooks 2241H420 1-7/8-inch long tube headers and catted Y-pipe kit transforms the exhaust flow on 1998–2002 Chevrolet Camaro SS and Pontiac Firebird Trans Am models with the 5.7L LS1 V8, replacing restrictive factory manifolds to unlock dyno-proven gains of 45–60 rear-wheel horsepower and 40–55 lb-ft of torque through equal-length primaries and merged collectors that optimize scavenging from low-end torque to high-RPM power.

Handcrafted from T304 aircraft-quality stainless steel with 3/8-inch laser-cut flanges, full TIG welds, and a high-flow 3-inch catted Y-pipe that bolts directly to the OEM mid-section, this system delivers seamless integration for track-ready performance while maintaining 49-state emissions compliance. The compact Y-pipe design preserves ground clearance and heat management for daily drivers or weekend warriors.

For fourth-generation F-body owners chasing the ultimate LS1 exhaust upgrade, the 2241H420 kit provides the complete bolt-on solution with championship-proven durability and aggressive V8 sound without drone.

Key Features

• 1-7/8-inch equal-length mandrel-bent primaries
• 3-inch catted Y-pipe with high-flow metallic substrate
• T304 stainless steel with full TIG welds
• 3/8-inch laser-cut flanges with port-matched openings
• Merged collectors for maximum scavenging
• Direct bolt-on to factory exhaust no modifications required

Product Notes

• 49-state EPA compliant not for sale or use in California or CARB states without exemption
• Fits manual and automatic transmissions
• Includes O2 sensor bungs and EGR provisions where applicable

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
• Attach Y-pipe to collectors and OEM mid-section with supplied hardware
• Torque flanges to 25-30 ft-lbs and perform drive cycle for ECU adaptation

This Part Fits

Note: Fits all coupe and convertible F-body models with LS1 5.7L. Excludes V6 or 5.7L LT1 models.

What's Included in the Purchase

• (2) 1-7/8" x 3" Long-Tube T304 Stainless Headers with Merged Collectors
• (1) 3" Catted Stainless Y-Pipe with OEM Outlet
• Gaskets, Stage 8 Locking Header Bolts, and Hardware Kit
• O2 Sensor Extensions and Bungs
• Detailed Installation Instructions
• Part Number: Kooks 2241H420

Why Choose Kooks?

• Over 60 years of exhaust engineering with NHRA, NASCAR, and SCCA championships
• 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 2000 Camaro SS manual?
  A: Yes, direct bolt-on for all 1998–2002 Camaro SS and Firebird Trans Am LS1 models
• Q: Will it cause a check engine light?
  A: No, catted Y-pipe and included extensions maintain proper O2 sensor function
• Q: How loud does it make the exhaust?
  A: Aggressive V8 rumble at WOT, refined and drone-free at cruise speeds

Shipping & Handling

• Method: UPS or Fed Ex Ground.
• Availability: Typically ships same day or next if in stock.
• Packaging: Heavy-duty wooden crate with foam protection.