Kooks / Exhaust Pipes

Kooks GM 6.2 Competition Y-Pipe, 3-inch to 3-1/2-inch | 28573100

Check vehicle fitment
£1,699.33 VAT included. Shipping calculated for your destination.

Available to Order

Not sure which one? Ask us to confirm fitment first →
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.

High value order, handled personally

We confirm build spec, lead time and delivery arrangements with you before any money moves. Prefer to talk it through first?

Technical specifications
Specification Details
SKU 28573100
Applications GM 1500 trucks: listed 2011-2013 applications; SUVs: listed 2011-2014 applications; 6.2L engines
Material 16-gauge 304 stainless steel
Inlet / OEM outlet 3" / 3-1/2"
Header joint Ball-and-socket; Kooks long tube headers required
Cats None; Competition Only
Fitting parts Clamps included; OEM rear hardware reused

Keep the OEM rear system with your 6.2 header conversion

Complete the front exhaust on your 2011-2013 GM truck or 2011-2014 SUV with this Kooks 6.2-litre Competition Only Y-pipe. The uncatted 3-inch pipework transitions to the 3-1/2-inch OEM rear connection. Choose the exact model and trim in the vehicle table.

SKU: 28573100

Ball-and-socket front connection

The 16-gauge 304 stainless Y-pipe requires matching Kooks long tube headers. It does not connect to the factory manifolds.

Clamps supplied for the installation

Fitting clamps are included. The rear joint reuses the OEM exhaust hardware, giving you a defined connection route to the retained rear system.

Vehicle fitment

Years Vehicle / trim Engine Applicable SKU Fitting conditions
2011-2014 Cadillac Escalade ESV Premium 6.2L V8 28573100
2011-2014 Cadillac Escalade ESV Base 6.2L V8 28573100
2011-2014 Cadillac Escalade ESV Luxury 6.2L V8 28573100
2011-2014 Cadillac Escalade ESV Platinum 6.2L V8 28573100
2011-2013 Cadillac Escalade EXT Base 6.2L V8 28573100
2011-2013 Cadillac Escalade EXT Premium 6.2L V8 28573100
2011-2013 Cadillac Escalade EXT Luxury 6.2L V8 28573100
2011-2014 Cadillac Escalade Platinum 6.2L V8 28573100
2011-2014 Cadillac Escalade Premium 6.2L V8 28573100
2011-2014 Cadillac Escalade Luxury 6.2L V8 28573100
2011-2014 Cadillac Escalade Base 6.2L V8 28573100
2011-2013 Chevrolet Silverado 1500 LTZ 6.2L V8 28573100
2011-2013 Chevrolet Silverado 1500 LT 6.2L V8 28573100
2011-2013 GMC Sierra 1500 Denali 6.2L V8 28573100
2011-2013 GMC Sierra 1500 SLE 6.2L V8 28573100
2011-2013 GMC Sierra 1500 SLT 6.2L V8 28573100
2011-2014 GMC Yukon Denali 6.2L V8 28573100
2011-2014 GMC Yukon XL 1500 Denali 6.2L V8 28573100
2011-2014 GMC Yukon XL 1500 SLT 6.2L V8 28573100

Intended use

28573100: Competition, off-road and track use only. Not for use on public roads.

The competition-use waiver applies to 28573100.

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 28573100
Applications GM 1500 trucks: listed 2011-2013 applications; SUVs: listed 2011-2014 applications; 6.2L engines
Material 16-gauge 304 stainless steel
Inlet / OEM outlet 3" / 3-1/2"
Header joint Ball-and-socket; Kooks long tube headers required
Cats None; Competition Only
Fitting parts Clamps included; OEM rear hardware reused

Frequently asked questions

Will this fit the original manifolds?

No. The front joints require the matching Kooks long tube headers.

Is the rear outlet 3 inches?

The front pipework is 3"; the OEM rear outlet is 3-1/2".

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.

Kooks GM 6.2 Competition Y-Pipe, 3-inch to 3-1/2-inch | 28573100
Kooks GM 6.2 Competition Y-Pipe, 3-inch to 3-1/2-inch | 28573100
Available to Order £1,699.33