Mod question

[Subaru ETA]

ok, so i cant be arsed spending **** loads on my car coz i have been there done that, got the tshirt.... plus i should really be saving for a house.....

HOWEVER! more boost is needed! SO, im getting it dyno tuned to run higest poss boost with out leaning (will prob do ecu stuff later. so what i want to know is should i go with a 3 inch exhaust with just a boost mod or would 2.5 be ok?

cheers fullas

[EdmundVR4]

Not much difference between 2.25" (stock) & 2.5"..............
3" or leave it alone !

[bradc]

You won't run lean on the stock setup, the fuel pump is powerful enough to run any boost you will try, the ecu will see that the boost is outside of it's range and cut the fuel anyway if you ramp up the boost too high.