Borla C4 Corvette Axle-Back Exhaust System 1984-1991 2.5 inch Upgrade for 5.7L V8 Models

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. 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. Million Mile Warranty 1984-1991 Chevrolet Corvette (C4) 5.7L V8 Automatic/ Manual Transmission Rear Wheel Drive Coupe/ Convertible. Modification To Original Equipment Mid-Pipe REQUIRED.

• This system increases the Axle-Back section diameter from the stock 2.25", to 2.5"

Upgrade your 1984-1991 Chevrolet Corvette with the Borla C4 Axle-Back Exhaust System, designed to enhance performance and sound. This system requires modification of the original mid-pipe by expanding the outlets from 2.25 inches to 2.5 inches, providing a more aggressive exhaust flow. Crafted from high-grade T-304 stainless steel, it offers superior durability and corrosion resistance compared to lower-grade materials. The ultra-smooth mandrel bends ensure maximum exhaust flow, which translates into increased horsepower, improved fuel economy, and a more exhilarating driving experience. The system features dual polished stainless steel tips measuring 3.38 inches by 3 inches, giving your Corvette a distinctive and custom appearance. Designed for both automatic and manual transmission rear-wheel-drive models, this exhaust upgrade produces the iconic Borla S-Type sound without any drone inside the vehicle, ensuring a refined yet aggressive tone. Patented straight-through and multi-core technology optimize exhaust velocity, unlocking hidden power while maintaining a refined exhaust note. Every Borla system is backed by a Million-Mile Warranty, reflecting our commitment to quality and performance. Installation involves modification of the original mid-pipe, making it a suitable upgrade for enthusiasts seeking a significant performance boost and a more aggressive aesthetic. Whether you drive a coupe or convertible, this system is engineered to fit seamlessly, delivering durable performance and a signature Borla sound that enthusiasts worldwide admire. Enhance your Corvette’s performance and aesthetics with this premium exhaust system designed for long-lasting performance and an unmistakable growl that turns heads on the road.

Features:

• Requires modification of the original mid-pipe by expanding outlets from 2.25" to 2.5"

• Constructed from high-quality T-304 stainless steel for durability and corrosion resistance

• s dual 3.38" x 3" polished stainless steel tips for a custom appearance

• Provides the classic Borla S-Type sound without drone inside the vehicle

• Increases exhaust flow and horsepower through patented straight-through and multi-core technology

• Mandrel-bent tubing ensures maximum exhaust velocity and flow

• Designed for 1984-1991 Chevrolet Corvette models with 5.7L V8 engine

• Backed by Borla’s Million-Mile Warranty for peace of mind

Fitment:
1984 Chevrolet Corvette Base
1985 Chevrolet Corvette Base
1986 Chevrolet Corvette Base
1986 Chevrolet Corvette Indianapolis 500 Pace Car
1987 Chevrolet Corvette Base
1988 Chevrolet Corvette 35th Anniversary Edition
1988 Chevrolet Corvette Base
1989 Chevrolet Corvette Base
1990 Chevrolet Corvette Base
1990 Chevrolet Corvette ZR-1
1991 Chevrolet Corvette Base
1991 Chevrolet Corvette ZR-1

Air Freight Prohibited: false
Not Carb Approved: false
Ltl Freight Required: false
Prop 65: Y
Part Type: automotive
Epa: N/A
Carb Acknowledgement Required: false
Regular Stock: false
Units Per Sku: 1