Know the landed cost before you order
Prices include VAT. Shipping is charged separately and calculated at checkout for your destination. If no shipping option is shown, contact us for a quote before ordering.
Make your LS1 F-body even more enjoyable
Give your Camaro or Firebird a matched Kooks front exhaust upgrade with 1-7/8" long tube headers and a supplied catted Y-pipe. Choose Performance or GREEN cats, while keeping the 2-3/4" OEM rear connection for your LS1-powered F-body.
SKUs: 2241H420, 2241H430
Matched headers and Y-pipe
Both packages use 1-7/8" primaries and 3" collectors. Their supplied stainless Y-pipes transition to the 2-3/4" OEM rear interface, giving you a coordinated conversion from the engine to the retained rear exhaust.
Choose the cats for your LS1 build
Performance cats suit naturally aspirated applications. GREEN is the catted choice here that supports forced induction. If your LS1 has a supercharger or turbocharger, choose the catalyst around that finished setup rather than the original factory engine specification.
Choose your configuration
| SKU | Configuration | Supplied arrangement | Fitting / engine conditions |
|---|---|---|---|
| 2241H420 | Cat Type: Performance Cats | Headers; Performance Cats front connections | Naturally aspirated only |
| 2241H430 | Cat Type: GREEN Cats | Headers; GREEN Cats front connections | Use the SKU-specific vehicle rows below |
Tuning for your exhaust upgrade
We recommend tuning with every header installation so the calibration suits your new headers, complete exhaust and fuel. Contact us to discuss the right tuning route for your vehicle.
Vehicle fitment
| Years | Vehicle / trim | Engine | Applicable SKU | Fitting conditions |
|---|---|---|---|---|
| 1998-2002 | Chevrolet Camaro Z28 SS | 5.7L V8 | 2241H420, 2241H430 | |
| 1998-2002 | Chevrolet Camaro Z28 | 5.7L V8 | 2241H420, 2241H430 | |
| 1998-2002 | Pontiac Firebird Formula | 5.7L V8 | 2241H420, 2241H430 | |
| 1998-2002 | Pontiac Firebird Trans Am | 5.7L V8 | 2241H420, 2241H430 |
Intended use
2241H420: Competition, off-road and track use only. Not for use on public roads.
Ordering and delivery
Estimated lead time is 4-6 weeks. Delivery may be faster depending on stock levels. Shipping is charged separately.
Technical specifications
| Specification | Details |
|---|---|
| SKUs | 2241H420, 2241H430 |
| Application | 1998-2002 Camaro / Firebird LS1 5.7L |
| Material | 304 stainless steel |
| Headers | 1-7/8" primaries; 3" collectors |
| Y-pipe | Performance or GREEN catted |
| Rear outlet | 2-3/4" OEM interface |
| Performance condition | Naturally aspirated only |
Frequently asked questions
Is the Y-pipe a separate purchase?
It is included in these header-and-connection kits.
Which kit is the GREEN version?
2241H430. The Performance-catted version is 2241H420.
