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With an open expansion slot you can purchase our stage 3 pump module or Stage 3
The 2 outer winglets are called rear splitters and are sold separately as an add-on option
This diffuser is made from mold injected thermoplastics and will fit any M Sport equipped G20 BMW 3 series (both petrol and diesel versions)
Upgrade your BMW’s performance and sound with the MAD 5" Catted Downpipe
Stage 2 93 octane: 30%HP / 42%TQ
2012-2018 BMW 3 Series (F30 / F31) M Performance Style Rear Diffuser Exhaust Cutout:335i / 340i With an open expansion slotThis 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
