2012-2018 BMW 3 Series (F30 / F31) M Performance Style Rear Diffuser 40 Amp the MAD exhaust ensures a

the MAD exhaust ensures a harmonious blend of performance and comfort

The Precision Raceworks E9X/ E8X Driver Side Coolant Brackets is the same great product that comes standard with our E9X/ E8X relocated inlet kits

Whether paired with the stock exhaust

The good news is that this is easily fixed and is very affordable

NOTE: The V8 motors (ie N63 or S63) use 2 DMEs and you would need to send both in for a successful unlock

2012-2018 BMW 3 Series (F30 / F31) M Performance Style Rear Diffuser 40 Amp the MAD exhaust ensures aThis is the Kies Motorsports M Performance style rear diffuser (non carbon) for your F30 BMW 3 series. This will fit any of the F30 generation BMW 320i, 328i, 335i, 330i, 340i as well as the xi and diesel variations. You MUST already have the M Sport rear bumper, as this diffuser will NOT fit the base bumpers. If you do not have an M Sport rear bumper, have no fear, you can purchase one of our Kies Motorsports M sport style rear bumper conversions