Here are your required Tuning options
304 stainless steel
3.5" OD 11 gauge tubing (for the downpipe)
3" OD 16 gauge tubing (for the midpipe)
Optional DOC from GESi
Stainless steel installation hardware included
No transmission reprogramming required
Will fit the following North American spec vehicles:
F15 BMW X5 35d (2014+)