Maxton Design - Rear Side Flaps BMW M440i G22 / G23 G20 / G21 Side Skirts replacing the standard catalyst

replacing the standard catalyst

a more planted feel when getting on and off the throttle and a simple install that delivers real-world results

dual slat kidney upgrade

cleaner upshifts and downshifts with improved reach from the 9 and 3 o’clock positions

Pedal effort can be higher than stock and some take-off judder or increased drivetrain noise may be present

Maxton Design - Rear Side Flaps BMW M440i G22 / G23 G20 / G21 Side Skirts replacing the standard catalystRear Side Flaps BMW M440i G22 G23 FITS ONLY: BMW 4 Coupe M440i G22 2020 BMW 4 Cabrio M440i G23 2020 ** Fits only with: BM4G22MPACKCNC RSD2 ** COMPLETE SET CONTAINS: Flaps Fitting kit Please Note: Whilst most items are held in stock and we endeavour to have these with you in little time, there will be instances where this item will have to be manufactured to order and shipped directly from the factory in Poland. On these instances shipping can take