Borla · New
Borla 84-91 Chevrolet Corvette C4 5.7L V8 D SQ AC IC Rear Section 2.5 inch Converter
MPN 11376 · Store SKU bor11376
Supplier stock checked 11/7/2026, 5:17:58 PM UTC. Adding a part does not reserve it.
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Product details
To complete this installation you will need to MODIFY the Original Equipment (O.E.) Mid-Pipe by expanding the outlets from to 2.25" to 2.5". This system upgrades your '84-'91 Corvette from the stock 2.25" diameter Axle-Back system to a more aggressive 2.5". The system features the classic S-Type sound with no drone inside the vehicle. It has dual BORLA® intercooled style 3.38" x 3" rectangle polished T-304 stainless steel tips on each muffler for a custom appearance. BORLA® Cat-Back™ & Axle-Back exhaust systems feature patented straight-through and multi-core technology 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, high-quality T-304 austenitic 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® 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. Borla Performance has once again proven why we have a led the aftermarket performance exhaust industry for over 30 years. Borla Performance Industries; the original pioneers of high quality; austinetic stainless steel free flow exhaust utilizes patented award and race winning technology to deliver quality; sound; performance gains; and enhanced fuel economy. All with an easy bolt on installation. All Borla street products carry an unsurpassed written million-mile warranty. S-Type Axle-Back Exhaust System 1984-1991 Chevrolet Corvette (C4) 5.7L V8 Automatic/ Manual Transmission Rear Wheel Drive Coupe/ Convertible. Converts The Stock 2.25" System To A More Aggressive 2.5" System. Axle-Back Exhaust System - S-Type S-Type; Rear Section Exhaust
Manufacturer fitment & guides
Check 11376 against the manufacturer’s application information below.
Part-specific notes
- California Proposition 65: Y
