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S-Type Cat-Back Exhaust System for 1986-1991 Chevrolet Corvette (C4) 5.7L V8 Automatic/ Manual Transmission Rear Wheel Drive Coupe/ Convertible (EXCEPT ZR1).EXCEPT ZR1. BORLA Performance Industries Cat-Back 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 3in diameter front pipe is mounted just after the catalytic converter leading to a Y-pipe, which splits into two 2-1/2in pipes exiting on each side of the rear. The muffler and tip assembly use a 10inx 5in diameter round muffler on each side of the vehicle, with your choice of a polished rectangular, rolled edge, angle cut tailpipe tip at each split rear exit (part # 140082) ? or a polished round rolled angle cut phantom tip at each split rear exit (part #140051). Tests have shown an exciting 41% increase in flow for dramatic improvement in power or fuel economy. That now famous, aggressive BORLA 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 race programs, it was no accident that this BORLA 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, the most winning exhaust in racing.
- Construction: All Welded
- Exhaust Type: Cat-Back System
- Exit Position: Split Rear
- Exit Style: Single Split Rear Exit
- Inlet Inside Diameter: 3.000 in.
- Material: T-304 Stainless Steel
- Muffler Type: Straight-Through
- Off Road Use Only: No
- Prop 65 - Long Label:
You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).
You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).
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