Hi guys
currently running a standard 2005 impreza Wrx with normal exhaust and a prodrive back box
if i put a full prodrive exhaust on with the be any performance diffrence
compared to now , also if i decide to could i just remap ecu and get bigger gains with the new exhaust or would i need fit other parts ie fuel pump ect

thanks beanys

 

If you put the rest of the prodrive exhaust on the car will breath easier and will give more power once it has been mapped. At this point changing the fuel pump is advisable, to ensure sufficient fuelling thus preventing problems in the future. Have you looked at other exhaust systems as they may be cheaper also look in the group buy section (Hayward andScott) and the private sales part on here for possible bargains

 

at the moment all i can afford is to fit the full prodrive exhaust will the car run better with this on once i take the subaru one off ,
cheers beanys