Borla 84-91 Chevrolet Corvette C4 5.7L V8 D SQ AC IC Rear Section 2.5 inch Converter
SKU: 38086820707

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

Sale price$976.95 Regular price$1085.50
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Ships within 48 hours · Estimated delivery Jul 7 - Jul 12

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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
Shipping Notes
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Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
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SKU: 38086820707

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4.1 ★★★★★
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Terry D.
Port Orchard, US
★★★★★ 1
Poor quality and false advertising in size
Size: 4/0 AWG 10FT Red & Black
A complete fraud. I ordered 4/0 but got 4 gauge. The description & picture was correct, but someone doesn’t know the difference in 4 gauge and 4/0. AND the jacket insulation was cheap and translucent, not solid color and supple/flexible. Poor product quality and completely misleading.
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Reviewed in the United States on October 16, 2025
A
Verified Purchase
Amazon Customer
Port Orchard, US
★★★★★ 5
Inexpensive part and YouTube knowledge lead to quick fix
Size: 96158T-1PCS
Solenoid went out on boat. After viewing multiple videos on YouTube I figured that my solenoid was bad. Ordered this and received a day later. Replaced the other one and this worked perfectly.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on August 9, 2025
I
Verified Purchase
Ivar Andreassen
Cuba, US
★★★★★ 5
Worked perfectly!
Size: 96158T-1PCS
Have an older Mercury 40hp 2 stroke. This Solenoid worked perfectly. It is not that easy to install, due to the design of the engine. It does require a bit of patient and the right tools to do it. If you have big hands and don't do this type of repair to often, call a friend that is better than you to get some help :) I have an older engine but it runs like charm. I will order an extra Solenoid and place in the box of "important spare parts" for the future. Very good experience for the purchase and overall quality of the part.
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Reviewed in the United States on January 14, 2022
M
Verified Purchase
me
Grantham, US
★★★★★ 5
Perfect fit and works great
Size: 96158T-2PCS
Perfect fit and works great. It is great that it comes as a 2pk. I replaced both with no need to change wiring, and kept the working one I had, as backup.
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Reviewed in the United States on May 27, 2026
T
Verified Purchase
Tom K.
San Leandro, US
★★★★★ 4
It works as it should...
Size: 96158T-2PCS
Used it in a pinch for stater relay... it works great. Be aware... Mine required metric sockets for the nuts... 10mm for large terminals - 3/8 was too tight and same for smaller terminals 7mm fit better than 5/16 that was too loose. The mounting holes are also spaced closer together than the OEM on a mercruiser 260 in a mid 1980's boat but easy to remedy with a 1/4" drill bit.
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Reviewed in the United States on August 4, 2023

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