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The Alpha Competition decat downpipes made from mandrel bent and TIG hand welded T304 stainless steel are a direct bolt on upgrade for the great S55 engines found in the M3 / M4 and M2C
High-flow design
Handcrafted
bootmod3 contains a full map editor so you can tune your car yourself or with your local tuner of choice as well
X3M/X4M F97/F98 LCI Decat Downpipes F90 The Alpha Competition decat downpipeshigh air flow 100% T304 stainless steel construction by handmade Smoothly internal process Better throttle response and faster spool up Compatible with the factory or aftermarket exhaust systems Fits for G80 G81 M3 M4 vehicles! More Information Brand Mertop Racing Model Type BMW S58
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