The Borla S-Type cat-back exhaust system is made for the 2021-2026 Chevrolet Tahoe, 4WD. It replaces the factory exhaust from the catalytic converter back with a 3.5-inch T-304 stainless steel system that splits into dual 2.75-inch pipes and black chrome tips, tuned to the S-Type sound level. The system is built to run with no drone inside the vehicle.
Part number: 140859BC
Borla cat-back exhaust system.
This system features the popular S-Type sound level with no drone inside the vehicle. We suggest cleaning the tips with hot water and a microfiber cloth. 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.
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 | 140859BC |
| Material | T-304 Stainless Steel |
| Shipping carton | 59.5 × 17 × 16 in (151 × 43 × 41 cm) |
| Shipping weight | 29.8 kg (65.6 lb) |
| Category | Exhaust & Performance |
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