After reading the recent thread about power gains from different air filters, seems from the feedback regardless of the make of filter they dont seem to increase power in any way, I have heard about a new carbon air box fits straight on to a subaru supposed to give you 10 15 more bhp anyone got one fitted or heard of one cost is around £400

 

what version do you have?


a simple heat shield, make some difference

 

I have a version 7 the first of the bugeyes heard about the carbon airbox from a local garage that specializes on suburus