The Borla S-Type cat-back exhaust system fits the 2014-2018 Chevrolet Silverado 1500 / GMC Sierra 1500 with the 5.3L V8 engine. It replaces the exhaust from the catalytic converter back.
Part number: 140545
Borla cat-back exhaust system.
Borla® Cat-Back™ & Axle-Back exhaust systems feature patented straight-through and multi-core technology designed 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-controlled CNC manufacturing ensures an accurate fit.
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.
Manufacturer data for this part — all visible, no tabs to dig through.
| Brand | Borla |
| Part number | 140545 |
| Material | T-304 Stainless Steel |
| Shipping carton | 61 × 16 × 13 in (155 × 41 × 33 cm) |
| Shipping weight | 28.1 kg (62 lb) |
| Inlet inside diameter | 2.750 in |
| Grade type | Performance |
| Exit style | Truck Split Side Exit |
| Exit position | Dual Split Side |
| Tubing diameter | 2.750 in |
| Construction | All Welded |
| Tip diameter | 4 in |
| Tip / outlet finish | Polished T-304 Stainless Steel |
| Tail pipe material | Stainless Steel |
| Tail pipe diameter | 2.750 in |
| System type | Cat Back |
| Exhaust type | Cat-Back System |
| Outlet outside diameter | 2.250 in |
| Muffler type | Straight-Through |
| Category | Exhaust & Performance |
More in Borla.
From MapleTorque customers
Awesome Send an email get reply very promptly... Send an other email weekend time ... Also get reply immediately... Alex take care of the customer to make sure everything going good during the transaction... #1 2026 Keep continu...
Quick shipping and very smooth transaction and I will certainly be checking here for future needs
Excellent shopping experience with MapleTorque! Alex was incredibly responsive, friendly, and genuinely committed to customer satisfaction. He personally helped me with pricing, made the purchase process easy, and even followed up after ...
New arrivals, restocks and fitment tips — straight from the counter.
