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Keep the dual rear exhaust on your 6.0-litre truck
These Kooks Competition Only pipes connect matching long tube headers to the OEM dual exhaust on your 2001-2006 GM 1500 6.0. They give the front conversion a dual rear connection rather than the single outlet of a Y-pipe.
SKU: 28523100
Dual connections for the correct rear arrangement
The 3" stainless pipework is for the OEM dual-exhaust application. Ball-and-socket front joints require matching Kooks long tube headers.
Clamps included, rear hardware reused
The connections use 16-gauge 304 stainless steel and include fitting clamps. The rear outlets connect to the OEM system using the existing factory hardware.
Vehicle fitment
| Years | Vehicle / trim | Engine | Applicable SKU | Fitting conditions |
|---|---|---|---|---|
| 2003-2006 | Cadillac Escalade ESV Base | 6.0L V8 | 28523100 | |
| 2002-2006 | Cadillac Escalade EXT Base | 6.0L V8 | 28523100 | |
| 2002-2006 | Cadillac Escalade Base | 6.0L V8 | 28523100 | |
| 2003-2006 | Chevrolet Silverado 1500 SS | 6.0L V8 | 28523100 | |
| 2004-2006 | Chevrolet Silverado 1500 LT | 6.0L V8 | 28523100 | |
| 2004-2005 | Chevrolet Silverado 1500 LS | 6.0L V8 | 28523100 | |
| 2006 | Chevrolet Suburban 1500 LTZ | 6.0L V8 | 28523100 | |
| 2001 | GMC Sierra 1500 C3 | 6.0L V8 | 28523100 | |
| 2002-2006 | GMC Sierra 1500 Denali | 6.0L V8 | 28523100 | |
| 2004-2006 | GMC Sierra 1500 SLE | 6.0L V8 | 28523100 | |
| 2004-2006 | GMC Sierra 1500 SLT | 6.0L V8 | 28523100 | |
| 2004 | GMC Sierra 1500 WT | 6.0L V8 | 28523100 | |
| 2004 | GMC Sierra 1500 Base | 6.0L V8 | 28523100 | |
| 2001-2006 | GMC Yukon Denali | 6.0L V8 | 28523100 | |
| 2001-2006 | GMC Yukon XL 1500 Denali | 6.0L V8 | 28523100 |
Intended use
28523100: Competition, off-road and track use only. Not for use on public roads.
The competition-use waiver applies to 28523100.
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 |
|---|---|
| SKU | 28523100 |
| Application | Supported 2001-2006 GM 1500 6.0L with OEM dual exhaust |
| Material | 16-gauge 304 stainless steel |
| Pipe diameter | 3" |
| Cats | None; Competition Only |
| Header joint | Ball-and-socket; Kooks long tube headers required |
| Fitting parts | Clamps included; OEM rear hardware reused |
Frequently asked questions
Is this the single-outlet Y-pipe?
This SKU supplies dual connections for the OEM dual rear exhaust.
Are fitting clamps supplied?
Yes. Clamps are included and the existing OEM rear hardware is reused.
