Product Description
This BORLA system has a valve simulator to prevent the Check Engine Light from coming on. The 3.5" into dual 2.75" system features the classic S-Type sound level with no drone inside the vehicle. Replace the small muffler behind the primary muffler in this BORLA S-Type system with Polyphonic Harmonizer 60680 to attain the ATAK sound level (louder than S-Type). Optional True Dual Cat-Back system available. 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. Each system is built from premium T-304 austenitic stainless steel, superior to T-400 series knockoffs (such as 409), to give you the absolute best in performance and durability. Ultra-smooth mandrel bends ensure maximum flow & power, and precision computer numerical control (CNC) manufacturing ensures an accurate fit. Give your Siverado or Sierra the power and sound it deserves, bolt on a BORLA . Best of all, BORLA stands behind every system with a Million-Mile Warranty. Just what you’d expect from the world’s most experienced (and most winning) exhaust brand.This Part Fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2025 | GMC | Sierra 1500 | AT4 |
Product Videos
Custom Field
Category Exhaust, Mufflers & Tips>Catback
MPN 140993
