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Complete your LS1 headers with the Y-pipe your build needs
Join your Kooks long tube headers to the OEM rear exhaust on your LS1 Camaro or Firebird. These stainless Y-pipes offer Competition Only, Performance or GREEN choices, with 3" front connections and a 2-3/4" factory-style rear outlet.
SKUs: 22413100, 22413200, 22413300
Choose around your LS1 modifications
Performance cats suit naturally aspirated engines. GREEN supports forced induction, while Competition Only supplies the uncatted arrangement for competition use. All three are front connection pipes for matching Kooks long tube headers.
Retain the rear exhaust that suits your car
The 2-3/4" OEM outlet lets a rear system using the factory interface remain. Headers are purchased separately, making this the connection choice when completing or changing your Kooks front system.
Choose your configuration
| SKU | Configuration | Supplied arrangement | Fitting / engine conditions |
|---|---|---|---|
| 22413100 | Cat Type: Comp. Only | Competition Only connection assembly | Uncatted; competition use |
| 22413200 | Cat Type: Performance Cats | Performance Cats connection assembly | Naturally aspirated only |
| 22413300 | Cat Type: GREEN Cats | GREEN Cats connection assembly | Use the SKU-specific vehicle rows below |
Matching products
Add the LS1 Camaro/Firebird long tube headers for the front component required by these 1998-2002 Y-pipes.
Vehicle fitment
| Years | Vehicle / trim | Engine | Applicable SKU | Fitting conditions |
|---|---|---|---|---|
| 1998-2002 | Chevrolet Camaro Z28 | 5.7L V8 | 22413100, 22413200, 22413300 | |
| 1998-2002 | Chevrolet Camaro Z28 SS | 5.7L V8 | 22413100, 22413200, 22413300 | |
| 1998-2002 | Pontiac Firebird Trans Am | 5.7L V8 | 22413100, 22413200, 22413300 | |
| 1998-2002 | Pontiac Firebird Formula | 5.7L V8 | 22413100, 22413200, 22413300 |
Intended use
22413100, 22413200: Competition, off-road and track use only. Not for use on public roads.
The competition-use waiver applies to 22413100.
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 | 22413100, 22413200, 22413300 |
| Applications | 1998-2002 Camaro / Firebird LS1 5.7L applications below |
| Material | 304 stainless steel |
| Pipework | 3" front to 2-3/4" OEM rear outlet |
| Choices | Competition Only; Performance; GREEN |
| Required headers | Matching Kooks long tube headers; separate purchase |
| Performance condition | Naturally aspirated only |
Frequently asked questions
Will these fit directly under stock manifolds?
They require matching Kooks long tube headers.
Which option suits a boosted LS1?
Choose the GREEN-catted 22413300 from these choices.
Is this the complete header kit?
This listing supplies the selected Y-pipe. The header-and-Y-pipe packages are separate listings.
