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Instruction Sheets for Part Number BOR-11815
Borla S-Type II Axle-Back Exhaust Systems for 2005-2008 CORVETTE - 11815
Part Number: BOR-11815
Borla S-Type II Axle-Back Exhaust Systems
Exhaust System, S-Type II, Rear Section, Dual, Stainless, Natural, Rear Center Exit, Chevy, 6.0L, 6.2L, Kit
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Estimated Ship Date from Texas: Monday 10/19/2026 Would you rather pick it up?
Overview
Brand:
Manufacturer's Part Number:
11815
Part Type:
Product Line:
Summit Racing Part Number:
BOR-11815
UPC:
808422118156
System Material:
304 stainless steel
System Style:
Rear section
Exhaust Type:
Dual
Exit Location:
Rear center
System Finish:
Natural
Catalytic Converter(s) Included:
No
Intermediate Pipe Diameter (in.):
2.50 in.
Muffler Included:
Yes
Muffler Quantity:
Two
Muffler Configuration:
Single inlet/Dual outlet
Muffler Style:
Turbo
Muffler Material:
304 stainless steel
Muffler Color:
Natural
Hardware Included:
Yes
Tailpipe Diameter (in.):
2.00 in.
Tip Included:
Yes
Tip Outlet Size (in.):
4.00
Tip Quantity:
4
Tip Shape:
Round
Tip Cut:
Slant
Tip Edge Style:
Rolled edge
Tip Material:
304 stainless steel
Tip Color:
Polished
Remanufactured:
No
Quantity:
Sold as a kit.
Notes:
Includes oval shaped mufflers.
Special Attention:
It is illegal to install parts or components that bypass, defeat, or render inoperative the manufacturers’ technology and design necessary to reduce vehicle emissions to meet state and federal Clean Air Act standards.
Borla S-Type II Axle-Back Exhaust Systems
Borla S-Type II axle-back exhaust systems replace the factory rear muffler(s) and exhaust pipe(s) and are installed behind a vehicle's rear axle. Following the same exhaust path and secured using the original hangers and rubber isolators, Borla axle-back (or rear section) performance exhausts are less restrictive than factory exhaust systems and improve the sound level both inside and outside the cabin.
S-Type II axle-back exhaust systems use engine-specific (not universal) mufflers that are designed, tested, and optimized specifically for a particular year, make, and model. They use the latest muffler designs to eliminate sound frequencies often associated with resonance or drone. In addition to superior muffler design, improvements in sound and performance are accomplished by using mandrel-bent tubing, and the application of proper engine-matched tubing diameters. Welded tips are standard on most systems.
Many vehicles have a factory service-point in the exhaust system (flange or slip-fit) located in the exhaust tubing behind the rear axle; so most Borla S-Type II axle-back installations are completed in less than an hour with no cutting of the factory system. Vehicles that don't have a factory service-point require cutting, so Borla includes easy-to-follow instructions and hardware to complete the installation.
Borla pioneered the use of aircraft-grade 304 stainless steel tubing, a material with a higher content of carbon and nickel that won't rust or corrode, for the automotive exhaust aftermarket … including Borla S-Type II axle-back exhaust systems.
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