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Instruction Sheets for Part Number BOR-11903CB
Borla ATAK Axle-Back Exhaust Systems for 2015-2019 CORVETTE - 11903CB
Part Number: BOR-11903CB
Borla ATAK Axle-Back Exhaust Systems
Exhaust System, ATAK, Rear Section, Quad, Stainless Steel, Natural, Rear Exit, Chevy, 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:
11903CB
Part Type:
Product Line:
Summit Racing Part Number:
BOR-11903CB
UPC:
808422319034
System Material:
304 stainless steel
System Style:
Rear axle-back
Exhaust Type:
Dual in/Four out
Exit Location:
Rear center
System Finish:
Natural
Catalytic Converter(s) Included:
No
Intermediate Pipe Diameter (in.):
2.75 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
Tip Included:
Yes
Tip Outlet Size (in.):
4.25
Tip Quantity:
4
Tip Shape:
Round
Tip Cut:
Slant
Tip Edge Style:
Rolled edge
Tip Material:
304 stainless steel
Tip Color:
Black
Remanufactured:
No
Quantity:
Sold as a kit.
Notes:
Fits models equipped with NPP Dual Mode Exhaust.
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 ATAK Axle-Back Exhaust Systems
Borla’s ATAK Axle-Back Exhaust System 11903CB does NOT have AFM valves but is equipped with NPP valves. It features a durable high-temperature ceramic black finish on T-304 stainless steel tips. Borla cat-back and axle-back exhaust systems blend 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 T-304 austenitic stainless steel to deliver the absolute best in performance and durability. Ultra-smooth mandrel bends ensure maximum flow and power; and precision computer-controlled CNC manufacturing facilitates an accurate fit.
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Instructions & Calculators
Some parts are not legal for use in California or other states with similar laws / regulations
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