Kooks 3" Stainless Competition Only Y-Pipe. 1999-2006 GM Truck/SUV 4.8L/5.3L.
Kooks / Exhaust Pipes

Kooks GM 4.8 / 5.3 Competition Y-Pipe (1999-2006) | 28513100

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£1,686.08 VAT included. Shipping calculated for your destination.

Available to Order

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Delivery, customs and taxes 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.

Lead times and urgent orders Check timing before you commit

Estimated lead time: 4–6 weeks. Delivery may be faster depending on stock levels. Contact us before ordering if timing matters.

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Technical specifications
Specification Details
SKU 28513100
Application Supported 1999-2006 GM trucks / SUVs, 4.8L / 5.3L
Material 16-gauge 304 stainless steel
Pipework / front joint 3" / ball-and-socket
Cats None; Competition Only
Rear / fitting parts OEM outlet; clamps included, rear hardware reused

Complete your GM V8 competition exhaust

This Kooks Competition Only Y-pipe takes matching long tube headers to the OEM rear exhaust on your 1999-2006 4.8- or 5.3-litre truck or SUV. The uncatted stainless assembly includes fitting clamps for the front conversion.

SKU: 28513100

Keep the OEM rear interface

The 3" 16-gauge 304 stainless tubes use ball-and-socket header joints. The outlet joins the OEM rear exhaust using the factory hardware.

Choose the competition-use arrangement

This is the uncatted option. Matching Kooks headers are required, with the model, engine and year rows below identifying the application.

Vehicle fitment

Years Vehicle / trim Engine Applicable SKU Fitting conditions
2002-2005 Cadillac Escalade Base 5.3L V8 28513100
2002-2006 Chevrolet Avalanche 1500 Base 5.3L V8 28513100
2002-2006 Chevrolet Avalanche 1500 Z71 5.3L V8 28513100
2002-2006 Chevrolet Avalanche 1500 LS 5.3L V8 28513100
2002-2006 Chevrolet Avalanche 1500 LT 5.3L V8 28513100
1999-2006 Chevrolet Silverado 1500 LS 4.8L V8 28513100
1999-2006 Chevrolet Silverado 1500 LS 5.3L V8 28513100
1999-2006 Chevrolet Silverado 1500 LT 4.8L V8 28513100
1999-2006 Chevrolet Silverado 1500 LT 5.3L V8 28513100
1999-2005 Chevrolet Silverado 1500 Base 4.8L V8 28513100
1999-2005 Chevrolet Silverado 1500 Base 5.3L V8 28513100
2002-2006 Chevrolet Silverado 1500 WT 4.8L V8 28513100
2002-2006 Chevrolet Silverado 1500 WT 5.3L V8 28513100
2004 Chevrolet Silverado 1500 5.3L V8 28513100
2004 Chevrolet Silverado 1500 4.8L V8 28513100
2000-2006 Chevrolet Suburban 1500 LS 5.3L V8 28513100
2000-2006 Chevrolet Suburban 1500 LT 5.3L V8 28513100
2000-2006 Chevrolet Suburban 1500 Base 5.3L V8 28513100
2004-2006 Chevrolet Suburban 1500 Z71 5.3L V8 28513100
2000-2006 Chevrolet Tahoe LS 5.3L V8 28513100
2000-2006 Chevrolet Tahoe LT 5.3L V8 28513100
2000-2006 Chevrolet Tahoe LS 4.8L V8 28513100
2000-2004 Chevrolet Tahoe LT 4.8L V8 28513100
2000-2006 Chevrolet Tahoe Base 4.8L V8 28513100
2000-2006 Chevrolet Tahoe Base 5.3L V8 28513100
2003-2006 Chevrolet Tahoe Z71 5.3L V8 28513100
2003-2004 Chevrolet Tahoe Z71 4.8L V8 28513100
1999-2006 GMC Sierra 1500 SLT 5.3L V8 28513100
1999-2006 GMC Sierra 1500 SLE 4.8L V8 28513100
1999-2006 GMC Sierra 1500 SLE 5.3L V8 28513100
1999-2004 GMC Sierra 1500 SLT 4.8L V8 28513100
1999-2006 GMC Sierra 1500 SL 4.8L V8 28513100
1999-2006 GMC Sierra 1500 SL 5.3L V8 28513100
2002-2006 GMC Sierra 1500 WT 4.8L V8 28513100
2002-2006 GMC Sierra 1500 WT 5.3L V8 28513100
2002-2005 GMC Sierra 1500 Base 5.3L V8 28513100
2002-2005 GMC Sierra 1500 Base 4.8L V8 28513100
2002 GMC Sierra 1500 HT 5.3L V8 28513100
2002 GMC Sierra 1500 HT 4.8L V8 28513100
2000-2006 GMC Yukon SLE 4.8L V8 28513100
2000-2006 GMC Yukon SLT 5.3L V8 28513100
2000-2006 GMC Yukon SLE 5.3L V8 28513100
2000-2005 GMC Yukon SLT 4.8L V8 28513100
2006 GMC Yukon SL 4.8L V8 28513100
2006 GMC Yukon SL 5.3L V8 28513100
2000-2006 GMC Yukon XL 1500 SLE 5.3L V8 28513100
2000-2006 GMC Yukon XL 1500 SLT 5.3L V8 28513100
2006 GMC Yukon XL 1500 SL 5.3L V8 28513100

Intended use

28513100: Competition, off-road and track use only. Not for use on public roads.

The competition-use waiver applies to 28513100.

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 28513100
Application Supported 1999-2006 GM trucks / SUVs, 4.8L / 5.3L
Material 16-gauge 304 stainless steel
Pipework / front joint 3" / ball-and-socket
Cats None; Competition Only
Rear / fitting parts OEM outlet; clamps included, rear hardware reused

Frequently asked questions

Are cats supplied?

No. This is the Competition Only uncatted Y-pipe.

Can I retain my rear exhaust?

Yes, if it uses the OEM connection.

Delivery, customs and taxes

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.

Lead times and urgent orders

Check timing before you commit

Estimated lead time: 4–6 weeks. Delivery may be faster depending on stock levels. Contact us before ordering if timing matters.

Fitment first

Check fit before you order

Model year, engine, drivetrain, hardware and existing modifications can all change what fits. Check the applications and supplier notes above, or send us your exact vehicle and setup before ordering.

Check vehicle fitment
Need help with this product?

Send us your vehicle, year, current setup and any fitting date, event, trip or deadline before ordering. We will help check fitment, product choice and timing.

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See other parts for this route
Kooks GM 4.8 / 5.3 Competition Y-Pipe (1999-2006) | 28513100
Kooks GM 4.8 / 5.3 Competition Y-Pipe (1999-2006) | 28513100
Available to Order £1,686.08