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Roush Mustang Axle-Back Exhaust Systems for 2011-2014 MUSTANG - 421145-BLK
Part Number: RSP-421145-BLK
Roush Mustang Axle-Back Exhaust Systems
Exhaust System, Rear Axle-back, Dual, Stainless Steel, Natural, Rear Exit, Black Tip, Ford, 3.7L, Kit
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Estimated Ship Date: Oct 26, 2026 Would you rather pick it up?
Overview
Brand:
Manufacturer's Part Number:
421145-BLK
Part Type:
Product Line:
Summit Racing Part Number:
RSP-421145-BLK
UPC:
844764005171
System Material:
304 stainless steel
System Style:
Rear axle-back
Exhaust Type:
Dual
Exit Location:
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/Single outlet
Muffler Style:
Chambered
Muffler Material:
304 stainless steel
Muffler Color:
Natural
Hardware Included:
Yes
Tailpipe Diameter (in.):
2.50 in.
Tip Included:
Yes
Tip Outlet Size (in.):
3.50
Tip Quantity:
2
Tip Shape:
Round
Tip Cut:
Slant
Tip Edge Style:
Rolled edge
Tip Material:
409 stainless steel
Tip Color:
Black
Remanufactured:
No
Quantity:
Sold as a kit.
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.
Roush Mustang Axle-Back Exhaust Systems
Announce your arrival with a deep, throaty-sounding exhaust while you enhance your car's performance. Roush Mustang axle-back exhaust systems include tips, a muffler, and hardware.
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Some parts are not legal for use in California or other states with similar laws / regulations
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