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SKU: 11376 | UPC: 808422113762
Borla 1984-1991 Chevrolet Corvette C4 5.7L V8 S-Type Axle-Back Exhaust System
The Borla 11376 S-Type Axle-Back Exhaust System fits 1984-1991 Chevrolet Corvette C4 models with 5.7L V8 engines, automatic or manual transmissions, coupe or convertible body styles. This system upgrades the factory 2.25-inch exhaust to a 2.5-inch setup for increased exhaust flow, delivering gains in horsepower, torque, fuel efficiency, and the signature Borla sound. Polished T-304 stainless steel construction ensures durability and a motorsport look.
Key Features
- T-304 Stainless Steel Build: Premium austenitic material resists corrosion and withstands high heat for long-lasting performance on street or track.
- Straight-Through Muffler Design: Patented multi-core technology improves exhaust velocity, unlocking hidden power and providing an aggressive yet refined exhaust note.
- 2.5-Inch Tubing Diameter: Mandrel-bent for smooth flow from 2.5-inch inlet to outlet, dual split rear exit with 3.8-inch polished tips.
- All-Welded Construction: Precision CNC manufacturing guarantees exact fitment and structural integrity under demanding conditions.
- Dual Split Rear Exit: Adds aggressive styling with polished T-304 stainless tips that enhance the Corvette's rear profile.
Product Notes
- Requires Y-pipe assembly for full conversion: #60001 for 1984-1985 models or #60002 for 1986-1991 models.
- Direct bolt-on axle-back design replaces mufflers and tailpipes after the rear axle.
- Product weight: 28 lbs; ships in a single box measuring 42 x 14 x 14 inches.
Installation Notes
- Professional installation recommended.
- Bolt-on installation using factory hangers; no cutting or welding needed for axle-back section.
- Verify Y-pipe compatibility based on model year before install; torque all clamps to spec.
This Part Fits
| Year | Make | Model | Submodel |
|---|---|---|---|
| 1984-1991 | Chevrolet | Corvette | Base |
| 1988 | Chevrolet | Corvette | 35th Anniversary Edition |
| 1986 | Chevrolet | Corvette | Indianapolis 500 Pace Car |
| 1990-1991 | Chevrolet | Corvette | ZR-1 |
Why Choose Borla?
- Over 40 years as the exhaust leader for performance vehicles, from classics to modern racers.
- Million-Mile Warranty backs every system for unmatched reliability.
- Patented straight-through technology proven on winning race cars worldwide.
Frequently Asked Questions
-
Q: Will this fit my 1987 Corvette with automatic transmission?
A: Yes, the Borla 11376 fits all 1984-1991 Corvette C4 5.7L V8 models, automatic or manual, coupe or convertible; add the correct Y-pipe for complete setup. -
Q: What material are the tips made from?
A: Polished T-304 stainless steel tips measure 3.8 inches in diameter, providing a mirror finish that resists pitting and discoloration. -
Q: Does it come with a warranty?
A: Backed by Borla's Million-Mile Warranty, covering defects in materials and workmanship for the original owner.
Shipping & Handling
- Method: UPS Ground or FedEx Ground
- Availability: In stock - ships same or next business day
- Packaging: Original Borla box, 42 x 14 x 14 inches
- Weight: 28 lbs
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