Borla Cat-Back Extension Pipe Adapter - 2017-2026 Ford F-250 / F-350 Super Duty 148" WB (60691)
Bridge the gap under your heavy-duty truck with the Borla Performance Cat-Back Extension Pipe Adapter for the 2017-2026 Ford F-250 and F-350 Super Duty. This premium modular wheelbase adapter is specifically engineered for owners needing to adjust select Borla cat-back exhaust systems to fit an Extended Cab configuration with a Short Bed (6-foot 9-inch bed) on a 148-inch wheelbase. Featuring a 3.5-inch inside diameter (I.D.) inlet that transitions directly into a 3.5-inch outside diameter (O.D.) outlet with an 8.5-inch overall length, this adapter simplifies underbody packaging while ensuring your performance exhaust layout is flawlessly aligned under the chassis.
Built to withstand extreme heavy-duty towing temperatures, high payload strain, and harsh road conditions, this extension component is manufactured from premium T-304 austenitic stainless steel for ultimate protection against structural rust, weather, and corrosion. Precision computer numerical control (CNC) manufacturing processes guarantee perfect alignment underneath the vehicle, while maintaining an unrestrictive flow pathway to preserve maximum gas stream velocity and engine performance. The package comes complete with one heavy-duty 3.5-inch exhaust clamp for a reliable, leak-free slip-fit installation. This product is backed by Borla's legendary lifetime Million-Mile Warranty.
Features
- Adapts select Borla cat-back performance exhaust systems to a 148" wheelbase length
- Features a high-velocity 3.5" I.D. inlet and 3.5" O.D. outlet with a compact 8.5" overall length
- Manufactured from high-grade T-304 austenitic stainless steel for lasting protection against rust
- Precision CNC manufactured to guarantee flawless clearance and straightforward underbody integration
- Includes one heavy-duty 3.5" premium band clamp for a secure, leak-free connection
- Engineered to maintain maximum exhaust gas velocity with zero restrictive bottlenecks
- Proudly made in the USA and backed by Borla's iconic lifetime Million-Mile Warranty
Fitment
- 2026 Ford F-250 / F-350 Super Duty Extended Cab Short Bed 148" WB (6.8L V8 / 7.3L V8)
- 2025 Ford F-250 / F-350 Super Duty Extended Cab Short Bed 148" WB (6.8L V8 / 7.3L V8)
- 2024 Ford F-250 / F-350 Super Duty Extended Cab Short Bed 148" WB (6.8L V8 / 7.3L V8)
- 2023 Ford F-250 / F-350 Super Duty Extended Cab Short Bed 148" WB (6.8L V8 / 7.3L V8)
- 2022 Ford F-250 / F-350 Super Duty Extended Cab Short Bed 148" WB (6.2L V8 / 7.3L V8)
- 2021 Ford F-250 / F-350 Super Duty Extended Cab Short Bed 148" WB (6.2L V8 / 7.3L V8)
- 2020 Ford F-250 / F-350 Super Duty Extended Cab Short Bed 148" WB (6.2L V8 / 7.3L V8)
- 2019 Ford F-250 / F-350 Super Duty Extended Cab Short Bed 148" WB (6.2L V8)
- 2018 Ford F-250 / F-350 Super Duty Extended Cab Short Bed 148" WB (6.2L V8)
- 2017 Ford F-250 / F-350 Super Duty Extended Cab Short Bed 148" WB (6.2L V8)
- Fits Automatic Transmission Models Only
- Fits 2WD and 4WD Configurations
*Note: EXCLUDES all vehicles equipped with Dual Rear Wheels (DRW / Dually). Designed exclusively to adapt select Borla cat-back exhaust configurations; not intended for use with original equipment or competitor systems.
CA Residents: WARNING: Cancer and Reproductive Harm www.P65Warnings.ca.gov
