DINANTRONICS X for 2015-2020 BMW M3C/M4C D440-0137 y-pipe This direct-fit catalytic converter is

This direct-fit catalytic converter is designed specifically for the 1987-1989 Porsche 944

7L V8 1969 - 1973 Chevrolet K20 Suburban 350/5

90109-A0013

For Ford AOD transmissions you will need installation kit #40496

DINANTRONICS X for 2015-2020 BMW M3C/M4C D440-0137 y-pipe This direct-fit catalytic converter isDINANTRONICS X 2015 2020 BMW M3C M4C The DINANTRONICS X is the newest installment of the highly successful Dinan foray into inline tuning modules. Like its predecessors it is a highly engineered piece of computer hardware and software that enhances engine performance to levels the stock programming is not allowed to venture. It does this without affecting long term reliability or the functionality of on board diagnostic systems when run under