how much bhp would a wrx my95 import produce with a decat pipe, stainless heatshielded induction kit and a dumpvalve likely to be producing?. Bought it a few weeks ago and would be interested to know rough figures. It is well quick.

 

275 at a guess

 

Thanks m8, i'm new to scoobydom and it would just be good to have some kind of idea

 

MY95 is 256bhp as standard, but on 100 RON fuel.

A full decat and filter will give you about 20-30bhp.

So run on Opimax plus Octane Booster (hence then hopefully 100RON), you should be seeing 256+(20-30)=276-286 ish.

BUT that is with a FULL decat (centre and downpipe changed), and 100 RON.

Dumpvalve of course gives 0 BHP.