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.
Keep the OEM rear exhaust with a competition front upgrade
Complete the Kooks header conversion on your 5.3-litre GM truck or SUV with this Competition Only Y-pipe. The 3" stainless front tubing joins the 2-3/4" OEM rear interface, retaining the compatible rear system.
SKU: 28603100
Different truck and SUV year ranges
These pipes fit the trucks listed below from 2014 to 2018, and the SUVs from 2015 to 2020. Choose the range for your own vehicle, as well as its 5.3-litre engine.
Clamps included, factory rear hardware reused
The uncatted 16-gauge 304 stainless Y-pipe uses ball-and-socket joints to Kooks long tube headers. Fitting clamps are supplied and the rear joint reuses OEM hardware.
Matching products
For the 2014-2018 trucks / 2015-2020 SUVs with the 5.3 engine, the GM 1-3/4-inch long tube headers provide the matching 3-inch front joint. Use this Y-pipe's exact years and 2-3/4-inch rear interface.
Vehicle fitment
| Years | Vehicle / trim | Engine | Applicable SKU | Fitting conditions |
|---|---|---|---|---|
| 2015-2020 | Chevrolet Suburban LT | 5.3L V8 | 28603100 | |
| 2015-2020 | Chevrolet Suburban LS | 5.3L V8 | 28603100 | |
| 2015-2016 | Chevrolet Suburban LTZ | 5.3L V8 | 28603100 | |
| 2017-2020 | Chevrolet Suburban Premier | 5.3L V8 | 28603100 | |
| 2014-2018 | Chevrolet Silverado 1500 LT | 5.3L V8 | 28603100 | |
| 2014-2018 | Chevrolet Silverado 1500 High Country | 5.3L V8 | 28603100 | |
| 2014-2018 | Chevrolet Silverado 1500 WT | 5.3L V8 | 28603100 | |
| 2014-2018 | Chevrolet Silverado 1500 LTZ | 5.3L V8 | 28603100 | |
| 2015-2018 | Chevrolet Silverado 1500 LS | 5.3L V8 | 28603100 | |
| 2016-2018 | Chevrolet Silverado 1500 Custom | 5.3L V8 | 28603100 | |
| 2015-2020 | Chevrolet Tahoe LS | 5.3L V8 | 28603100 | |
| 2015-2020 | Chevrolet Tahoe LT | 5.3L V8 | 28603100 | |
| 2015-2016 | Chevrolet Tahoe LTZ | 5.3L V8 | 28603100 | |
| 2016-2017 | Chevrolet Tahoe Z71 | 5.3L V8 | 28603100 | |
| 2017-2020 | Chevrolet Tahoe Premier | 5.3L V8 | 28603100 | |
| 2018 | Chevrolet Tahoe Midnight Edition | 5.3L V8 | 28603100 | |
| 2015-2020 | GMC Yukon XL SLT | 5.3L V8 | 28603100 | |
| 2015-2020 | GMC Yukon XL SLE | 5.3L V8 | 28603100 | |
| 2014-2018 | GMC Sierra 1500 Denali | 5.3L V8 | 28603100 | |
| 2014-2018 | GMC Sierra 1500 Base | 5.3L V8 | 28603100 | |
| 2015-2018 | GMC Sierra 1500 SLT | 5.3L V8 | 28603100 | |
| 2015-2018 | GMC Sierra 1500 SLE | 5.3L V8 | 28603100 | |
| 2015-2020 | GMC Yukon SLE | 5.3L V8 | 28603100 | |
| 2015-2020 | GMC Yukon SLT | 5.3L V8 | 28603100 |
Intended use
28603100: Competition, off-road and track use only. Not for use on public roads.
The competition-use waiver applies to 28603100.
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 | 28603100 |
| Applications | Supported 2014-2018 GM trucks / 2015-2020 SUVs, 5.3L |
| Material | 16-gauge 304 stainless steel |
| Inlet / OEM outlet | 3" / 2-3/4" |
| Cats | None; Competition Only |
| Front joint | Ball-and-socket; Kooks headers required |
| Fitting parts | Clamps included; OEM rear hardware reused |
| Configuration | 28603100; Model Year: 2014-2018; Engine Size: 5.3L; Cat Type: Comp. Only |
Frequently asked questions
Which truck and SUV years do these pipes cover?
The truck range is 2014-2018 and the SUV range is 2015-2020.
Can I retain the rear exhaust?
Yes, with the compatible 2-3/4" OEM connection.
