PFR5-419, PFR5-421 and PFR5-423’s are inserts to be used with the original bushes
PFR5-420 and PFR5-422 are complete replacements for the original bushes
PFR5-1220 is a complte replacment bush for non-M models to raise the front of the rear subframe by 9mm providing the same anti-squat characteristic during acceleration as featured on M model vehicles and is recommended to be used with PFR5-422P
PFR5-421 Insert fits all models up to -07/2005. Then Automatic models only from 07/2005- on
PFR5-423 Insert fits all diesel-engine E91 Touring models. For all other petrol models, use PFR5-421
PFF5-4020 only fits the cars with the N54, N55
PFF5-470 only fits vehicles with manual transmission.
