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.
Complete your F-150 exhaust the way you want it
Once you have chosen the long tube headers for your 5.0 F-150, this Y-pipe completes the connection to the compatible OEM rear exhaust. Choose the catalyst specification around your engine and planned upgrades, with five actual versions to compare. Stainless steel construction and the matched Kooks interface keep the installation focused on parts designed to work together.
SKUs: 13713100, 13713200, 13713300, 13713400, 13713500
A matched connection to your rear exhaust
This Y-pipe joins the matching Kooks F-150 5.0 long tube headers to the OEM rear exhaust on your 2021-2026 truck. Its 3" header inlets use ball-and-socket joints, so choose the matching headers and the catalyst option for your engine together.
A matched route into the rear exhaust
The 3" Y-pipe joins matching Kooks long tube headers to the OEM rear exhaust. One 3" band clamp is included with each version. Choose it alongside the header specification so both the collector interface and the catalyst choice suit the finished truck.
Finish the conversion properly
We recommend professional fitting and calibration for the complete long tube installation. Where the headers are fitted at the same time, their driver-side engine-mount heat-shield clearance must also be checked. Route O2 wiring away from hot pipework and check the joints after the first heat cycle.
Choose your option
| SKU | Cat Type | Fitting / contents | Stated use restriction |
|---|---|---|---|
| 13713100 | Comp. Only | 3" Y-pipe for matching Kooks long tube headers; OEM rear connection and one band clamp. | Competition, off-road and track use only. Not for use on public roads. Kooks competition-use waiver required. |
| 13713200 | Performance Cats | 3" Y-pipe for matching Kooks long tube headers; OEM rear connection and one band clamp. | |
| 13713300 | GREEN Cats | 3" Y-pipe for matching Kooks long tube headers; OEM rear connection and one band clamp. | |
| 13713400 | H.O. GREEN Cats | 3" Y-pipe for matching Kooks long tube headers; OEM rear connection and one band clamp. | |
| 13713500 | ULTRA GREEN Cats | 3" Y-pipe for matching Kooks long tube headers; OEM rear connection and one band clamp. |
Vehicle fitment
| Years | Vehicle and trim | Engine | Applicable SKU / fitting conditions |
|---|---|---|---|
| 2021-2026 | Ford F-150 Platinum | 5.0L V8 | 13713100, 13713200, 13713300, 13713400, 13713500 |
| 2021-2026 | Ford F-150 XL | 5.0L V8 | 13713100, 13713200, 13713300, 13713400, 13713500 |
| 2021-2026 | Ford F-150 XLT | 5.0L V8 | 13713100, 13713200, 13713300, 13713400, 13713500 |
| 2021-2026 | Ford F-150 Lariat | 5.0L V8 | 13713100, 13713200, 13713300, 13713400, 13713500 |
| 2021-2026 | Ford F-150 Tremor | 5.0L V8 | 13713100, 13713200, 13713300, 13713400, 13713500 |
| 2021-2026 | Ford F-150 SSV | 5.0L V8 | 13713100, 13713200, 13713300, 13713400, 13713500 |
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 |
|---|---|
| Application | Ford F-150 5.0, 2021-2026 |
| Construction | 304 stainless steel Y-pipe |
| Pipe diameter | 3" |
| Rear connection | Compatible OEM rear-exhaust connection |
| Required headers | Matching Kooks long tube headers |
| Included clamp | One 3" band clamp |
| Catalyst choices | Competition Only, Performance Cats, GREEN, H.O. GREEN and ULTRA-GREEN, as listed by SKU |
Frequently asked questions
Can I use this with factory manifolds?
This Y-pipe requires matching Kooks long tube headers.
Can I keep the OEM rear exhaust?
Yes. The Y-pipe provides the compatible OEM rear connection.
Does a catalyst name change the pipe fitment?
The five versions offer different catalyst specifications within this matching Y-pipe range. Choose the catalyst for the engine as well as confirming the header application.
Is a clamp supplied?
Yes. One 3" band clamp is included with each version.
