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Improve air flow in the factory system where it was restricted - the filters themselves
Where BMW's intercooling system design was enough to help bring this generation of mid-sized M's to their peak
The JB4 is a plug and play tune available for turbocharged vehicles
and even more power out of your N54 today
The Race Port is famous for being an amazingly small and light BOV for turbocharged (replace with supercharged for the supercharger version) competition level engines
F97 X3 M / F98 X4 M Dinan Performance Spring Set Add Supplemental Ride Quality & Handling Kit?:No Improve air flow in theSuspension systems that not only transform the stance of the vehicle but also maintain ride quality and improve upon handling are what Dinan suspensions are known for. This is accomplished by pairing springs sets with bump stops spring perches or both to maintain suspension travel resulting in a smooth ride while also improving mechanical grip and handling. This is what makes Dinan suspension systems unique. While we are able to sell each component
US$ 49.95
US$ 399.50
US$ 106.95
US$ 34.75
US$ 56.95
