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Instruction Sheets for Part Number BOR-11951
Borla S-Type Axle-Back Exhaust Systems for 2018-2023 MUSTANG - 11951
Part Number: BOR-11951
Borla S-Type Axle-Back Exhaust Systems
Exhaust System, S-Type, Axle Back, 304 Stainless Steel, Ford, Mustang, 5.0L Coyote, Models With Active Valve Exhaust, Kit
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Estimated Ship Date: Oct 29, 2026 Would you rather pick it up?
Overview
Brand:
Manufacturer's Part Number:
11951
Part Type:
Product Line:
Summit Racing Part Number:
BOR-11951
UPC:
808422119511
System Material:
304 stainless steel
System Style:
Rear axle-back
Exhaust Type:
Dual in/Four out
Exit Location:
Split rear
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
Tip Included:
Yes
Tip Outlet Size (in.):
3.00
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:
Designed for use on models with Active Valve Performance exhausts.
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 Axle-Back Exhaust Systems
Borla’s axle-back exhaust system 11951 is designed to fit 5.0L Mustang GTs that are equipped with Active Valve Performance Exhaust. This system will fit Bullitt, coupe, and convertible models. It features dual bright chrome on T-304 stainless steel tips and the "S-Type" sound. Borla cat-back and axle-back exhaust systems feature patented straight-through and multi-core technology designed 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 stainless steel to give you the absolute best in performance and durability. Ultra-smooth mandrel bends ensure maximum flow and power; and precision computer-controlled CNC manufacturing ensures an accurate fit. Best of all, Borla stands behind every system—just what you’d expect from the world’s most experienced (and most winning) exhaust brand.
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Some parts are not legal for use in California or other states with similar laws / regulations
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