1986-1991 Corvette C4 Borla S-Type Cat-Back Exhaust with LT1 Tips

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1986-1991 C4 Borla S-Type Cat-Back Exhaust with LT1 Tips

Looking to add an aggressive new sound to your Corvette without any drone? The 1986-1991 C4 Borla S-Type Cat-Back Exhaust System is the answer! This system is constructed from 100% aircraft quality T-304 stainless steel with TIG welds and utilizes Borla's patented Straight-Through and Multi-Core technology to unleash hidden horsepower!

This cat-back system upgrades your Corvette from the factory 2.25" system to a more aggressive 2.5" system with ultra-smooth mandrel bends for maximum air flow and power. A 3" diameter front pipe is mounted just after the catalytic converter and leads to a Y-pipe that splits into two 2.5" pipes exiting on each side of the rear. The precision, computer-controlled CNC manufacturing ensures an accurate fitment and the absolute best in performance and durability. This system features angle-cut, rolled lip, LT1 style, rectangular tips that also add a fresh look to your C4's rear end.

Made in the USA!

• Fits 1986-1991 Corvettes
• Fits Automatics & Manuals
• Does NOT Fit 1990-1991 ZR-1s
• Bolt-On Installation
• Direct Replacement
• 10" x 5" Diameter Round Mufflers
• TIG Welded
• T-304 Stainless Steel Construction
• Straight-Through Muffler Design
• Single 3" Pipe Diameter from Catalytic Converter (76.2mm)
• Dual 2.5" Pipe Diameter (63.5mm)
• 6.69" x 3" LT1 Style Rectangular Tips (169.9mm x 76.2mm)
• Ultra-Smooth Mandrel Bends
• Up to 41% Increase in Flow
• Computer-Controlled CNC Manufacturing for Accurate Fitment
• Multi-Core Technology
• No Drone
• Increases Exhaust Velocity to Add Power & Fuel Economy
• Mounting Hardware Included
• Instructions Included

NOTE: Exhaust systems that have been installed or modified may not be eligible for return. Please contact us prior to installation if you have any questions regarding sound, performance, or fitment. We're here to help!

Also known under these part numbers: (For reference only)

• 140082
• 808422400824
• BOR140082
• EX-2092