Cat-Back System

EXCEPT ZR2 & AT4X models. Factory Split Rear Exit ONLY. This system features bright chrome on T-304 stainless steel tips. Add Adapter 60706 for Crew Cab with Standard Bed (6' 7") 157" Wheelbase vehicles. Replace the small muffler behind the primary muffler in the Borla(r) "S-Type" system with Polyphonic Harmonizer 60680 to attain the "ATAK(r)" sound level (louder than "S-Type"). Optional "True Dual" Cat-Back(tm) system available, see the Related Parts section. Borla(r) Cat-Back(tm) & 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(r) Sound of Power respected by motoring enthusiasts everywhere. Each system is built from premium T-304 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. Best of all, Borla(r) 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.

Additional Information

S-Type Cat-Back(tm) Exh. Sys. 2019-2023 Chev. Silv. 1500/ GMC Sierra 1500 (EXCEPT ZR2 & AT4X) 6.2L V8 Auto. Trans. 2 & 4WD Ext. Cab W/Std. Bed (6' 7") 147.7" WB/ Crew Cab W/Short Bed (5' 9") 147.7" WB. Factory Split Rear Exit Vehicles ONLY.

Application Summary

Factory Split Rear Exit Vehicles ONLY. Add Adapter 60706 For Crew Cab With Standard Bed (6' 7") 157" Wheelbase Vehicles.

Part Type

Exhaust System Kit

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Product Details

Product Downloads

#	Document Type	Download
1.	Installation Instructions

Installation guides, warranty details, and other supporting documents are provided by the supplier. In some cases, these files may originate from regions outside your locale, meaning instructions, warranty procedures, and images may not fully align with your specific vehicle or region (e.g., LHD vs. RHD differences, return policies, etc.). If you need clarification, please contact a StreetFX support agent.

Reference Information

Exhaust System, S-Type, Cat-back, Stainless, Natural, Split Rear Exit, Square Chrome Tips, Chevy, GMC, 6.2L, Kit

Borla’s S-Type Cat-Back Exhaust System 140783 fits factory split rear exit vehicles ONLY (except ZR2 and AT4X models). Bright chrome on T-304 stainless steel tips are included. Borla cat-back and axle-back exhaust systems blend 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. Each system is built from premium T-304 stainless steel to deliver the absolute best in performance and durability. Ultra-smooth mandrel bends ensure maximum flow and power; and precision computer numerical control (CNC) manufacturing facilitates an accurate fit. Best of all, Borla stands behind every system—just what you’d expect from the world’s most experienced (and most winning) exhaust brand.

Additional notes:
• Add adapter 60706 for Crew Cab with Standard Bed (6 ft. 7 in.) 157 in. wheelbase vehicles
• Replace the small muffler behind the primary muffler in the 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 separately