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Challenge Engineering - E9X M3 Exhaust System
The Challenge Engineering Exhaust system features 304 stainless steel piping and flanges, and a precision fabricated muffler section. This is a full bolt on solution that connects directly to the OEM Midpipe flange. All bolts, gaskets, and stainless clamps necessary for install are included. ECU reflash or CEL not required.
Features:
3.5 Inch Round Tips
Made in the USA
Full stainless steel construction
Laser cut and formed mounting brackets
2.5 inch Piping
Full bolt on installation
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