X3M/X4M F97/F98 LCI Decat Downpipes

1.  high air flow
2.  100% T304 stainless steel construction by handmade
3.  Smoothly internal process
4. Better throttle response and faster spool up
5.  Compatible with the factory or aftermarket exhaust systems

Fits for G80/G81 M3/M4 vehicles!