just to say i put a prodrive exhaurst on me wrx today and it sounds a lot better. will i have gained any bhp. thanks

 

a little maybe 5 - 10

 

now your on the slippery slope,,,, pmsl

 

slippery slope indeed

 

haha That's where it starts! Did it make that much of a difference? I thought the prodrive ones were quiet? I put an afterburner vortex on mine and I couldn't believe the sound difference. It was like a totally diferent car

 

sounds a lot better than the standerd one

 

Mine showed +8 bhp and +8 ft/Ib torque over std with a Prodrive back box and an ITG panel filter (now a Simota). Get rid of the resonator and 3rd cat and it sounds louder, but not in the some league as the Vortex, however I leave for work at 05:00 quite often so thats no bad thing