The Borla S-Type cat-back exhaust system is for the 2015-2022 Chevrolet Colorado. Tuned for the 3.6L engine with no drone, it bolts on and ends in a 4-inch T-304 stainless steel bright chrome tip; crew cab long bed trucks need extension pipe 60570.
Part number: 140645
Borla cat-back exhaust system.
The exhaust system is a direct bolt-on part for ease of installation. Specifically tuned for the 3.6L engine, our S-Type Cat-Back™ delivers a sportier sound and a more exciting driving experience without any drone. Black Chrome is also available (PN 140645BC). For vehicles with Crew Cab and Long Bed (6' 2") 140.5" Wheelbase, add Extension Pipe 60570. Ultra-smooth mandrel bends ensure maximum flow & power, and precision computer numerical control (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 | 140645 |
| Material | T-304 Stainless Steel |
| Shipping carton | 53 × 11 × 21 in (135 × 28 × 53 cm) |
| Shipping weight | 19.5 kg (43 lb) |
| Construction | All Welded |
| Tip diameter | 4 in |
| Tip / outlet finish | Bright Chrome On 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 | 2.750 in |
| Muffler type | Straight-Through |
| Inlet inside diameter | 2.750 in |
| Grade type | Performance |
| Exit style | Truck Single Right Rear Exit |
| Exit position | Single Rear |
| Tubing diameter | 2.750 in |
| Category | Exhaust & Performance |
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