SKU: 21558061930

Borla 84-91 Chevrolet Corvette C4 5.7L V8 D SQ AC IC Rear Section 2.5 inch Converter

Sale price$731.25 Regular price$812.50
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Ships within 48 hours · Estimated delivery Aug 5 - Aug 10

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Description

Borla 84-91 Chevrolet Corvette C4 5.7L V8 D SQ AC IC Rear Section 2.5 inch ConverterTo 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

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.

Installation Instructions

This Part Fits:

Year Make Model Submodel
1988 Chevrolet Corvette 35th Anniversary Edition
1984-1991 Chevrolet Corvette Base
1986 Chevrolet Corvette Indianapolis 500 Pace Car
1990-1991 Chevrolet Corvette ZR-1
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Exchange/Return Notes
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SKU: 21558061930

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4.2 ★★★★★
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J
Verified Purchase
JJW
Fort Morgan, US
★★★★★ 3
Mounting system doesn’t align on one of three shelves.
Color: Walnut, Size: 3 Pack
Nice shelves. Install was super easy except on one of the three shelves. The main mounting shelf holes were off so the shelf will not slip onto horizontal mounting poles unless I modify the shelf. So a 20 minute job becomes a two hour job. The mounting system does appear very sturdy just not aligned.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 4, 2026
A
Verified Purchase
Amazon Customer
Waukegan, US
★★★★★ 5
Great quality!
Color: White
Great quality! Easy to put together!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 12, 2026
I
Verified Purchase
it is awesomeness
Pawtucket, US
★★★★★ 5
Great
Color: White
Very nice easy to install
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Reviewed in the United States on April 19, 2026
T
Verified Purchase
Tina
Lowell, US
★★★★★ 5
The Perfect Shelves!
Color: Wooden
Great quality and easy to assemble. The perfect shelves for my space.
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Reviewed in the United States on March 16, 2026
L
Verified Purchase
Lisa Rattee
Dallas, US
★★★★★ 5
Beautiful Decorative and Light Weight Shelving!
Color: White
Beautiful shelving. Came with hardware for hanging and a ruler strip template for mounting locations, although the holes did not match up with the shelf holes. Shelves are just the right size for my purpose and also decorative and light weight.
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Reviewed in the United States on May 24, 2026

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