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Description
Borla 86-91 Corvette 5.7L 8cyl S-Type SS Catback ExhaustBorla(r) Performance Industries Cat Back(tm) system for the celebrated 1986 1991 C4 Corvette equipped with a 5. 7L V 8 engine has been engineered to work with either the popular manual transmission or the automatic. The premium, high quality, T 304 Austenitic stainless steel system is easy to bolt on, is a direct replacement for the much heavier (by some 20lbs.!) stock system. A 3" diameter front pipe is mounted just after the catalytic converter
Borla(r) Performance Industries Cat-Back(tm) system for the celebrated 1986-1991 C4 Corvette equipped with a 5.7L V-8 engine has been engineered to work with either the popular manual transmission or the automatic. The premium, high-quality, T-304 Austenitic stainless steel system is easy to bolt on, is a direct replacement for the much heavier (by some 20lbs.!) stock system. A 3" diameter front pipe is mounted just after the catalytic converter leading to a Y-pipe, which splits into two 2-1/2" pipes exiting on each side of the rear. The muffler and tip assemblies use a 10"x 5" diameter round muffler on each side of the vehicle, with polished T-304 stainless steel rectangular, rolled edge, angle cut tailpipe tip at each split rear exit. Tests have shown an exciting 41% increase in flow for dramatic improvement in power or fuel economy. That now famous, aggressive Borla(r) growl and sexy look proclaim this block may be small, but it means all business we guarantee it for a Million-Miles! With race-bred technology that has been transferred from the many successful Borla(r) race programs, it was no accident that this Borla(r) system has won several major Corvette exhaust shootouts. Included in this great and storied past are such famous efforts as the C5-R Race Team that has dominated LeMans along with the Bondurant Corvette program at the Bob Bondurant School of High Performance Driving. Only what you would expect from Borla(r), the most winning exhaust in racing.This Part Fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 1988 | Chevrolet | Corvette | 35th Anniversary Edition |
| 1986-1991 | Chevrolet | Corvette | Base |
| 1986 | Chevrolet | Corvette | Indianapolis 500 Pace Car |
| 1990-1991 | Chevrolet | Corvette | ZR-1 |
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4.0 ★★★★★
Based on 24 reviews
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Product Reviews
★★★★★ 5
Name holds true.
Size: Large Triple
Just bought my second set of these.. first set lasted my healer almost 4 years and are still together but starting to split at the smaller seams so you can’t play as aggressive as my dog would like. We bought the second set and now she has her second wind! She loves tugging and I love knowing this toy will last a good while especially with an active dog!
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Reviewed in the United States on January 4, 2025
★★★★★ 5
Doggy approved
Flavor Name: Chicken, Size: 12 Ounce (Pack of 1)
My dog loves them!
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Reviewed in the United States on May 28, 2026
★★★★★ 5
Not long lasting, but preferred by my dogs and not smelly
Flavor Name: Chicken, Size: 12 Ounce (Pack of 1)
I have two pretty serious chewers. They prefer these bones over all of their longer-lasting dog bones, and these don't stink (which is more than I can say for most dog bones they like). I'm also less worried about digestion and choking hazards since these are rawhide-free. I buy these bones regularly and will continue to do so - just don't expect them to last more than a few minutes for big chewers.
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Reviewed in the United States on September 15, 2018
★★★★★ 5
My lab loves them!!
Flavor Name: Chicken, Size: 12 Ounce (Pack of 1)
I am not a fan of the price and I don't know why they are so pricy, but my lab lives them so I will treat him every once in awhile. I love that these take awhile for him to eat giving him more time to enjoy them.
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Reviewed in the United States on June 27, 2021
★★★★★ 4
Dog approved!
Flavor Name: Chicken, Size: 12 Ounce (Pack of 1)
My dog, a half pit bull and half chocolate lab, has a very sensitive stomach. With that in mind I have to always be wary of the things I buy her. With that in mind these seemed to work great! They don’t last as long as normal raw hide, so there is less “chew time” but she was excited when she received them! If your looking for a quick treat or reward for your dog these are great! If your looking for a bone/chewing alternative then these don’t quite meet that requirement.
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Reviewed in the United States on October 29, 2018