Borla cat-back exhaust system.
EXCEPT ZR2 & AT4X models. Factory Split Rear Exit Vehicles ONLY. Add Adapter 60706 for Crew Cab with Standard Bed (6' 7") 157" Wheelbase vehicles. This BORLA® system has a valve simulator to prevent the Check Engine Light from coming on. Replace the Polyphonic Harmonizer behind the muffler in this ATAK® system with muffler 60679 to attain the S-Type sound level (quieter than ATAK®). Tips NOT Included, reuse factory tips. Systems that include tips are also available. BORLA® Cat-Back™ & Axle-Back exhaust systems feature patented straight-through and multi-core technology to unleash hidden horsepower. Increased exhaust velocity adds power, driving excitement, fuel economy, and the distinctive BORLA® Sound of Power respected by motoring enthusiasts everywhere. Ultra-smooth mandrel bends ensure maximum flow & power, and precision computer numerical control (CNC) manufacturing ensures an accurate fit. Just what you’d expect from the world’s most experienced (and most winning) exhaust brand.
A cat-back system replaces everything behind the catalytic converter and leaves emissions equipment in place.
Use the vehicle selector to confirm your exact year and configuration.
Borla Cat-Back Exhaust System - Touring — 2024-2026 Chevrolet Silverado 1500 / GMC Sierra 1500 (140990)
Vehicle fitment
Estimated fitment — verify before purchase| Years | Make | Model |
|---|---|---|
| 2024–2026 | Chevrolet | Silverado 1500 |
| 2024–2026 | GMC | Sierra 1500 |
Specifications
Manufacturer data for this part — all visible, no tabs to dig through.
| Brand | Borla |
| Part number | BRL140990 |
| Position | Rear |
| Category | Exhaust & Performance |
| Years | Make | Model |
|---|---|---|
| 2024–2026 | Chevrolet | Silverado 1500 |
| 2024–2026 | GMC | Sierra 1500 |

Worth adding
Useful in any truck — ships separately in its own box.
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