i just got an 04 wrx wagon. has a vf22 turbo sti top mount up pipe down pipe intake. the previous owner claims he had it tuned but has no proof. its boosting at 11 lbs now. Would getting a cobb accessport give me more hp? or since it is tuned will it make any difference? Also how can i increase my boost?
Sadly a Cobb AP wouldn't help you at all unless you're just buying it to get a AP protune map put on it right away. Cobb doesn't have any maps for a VF22. You are going to have to get a tuner to do a pro-tune on your car. Either OS tuned or which ever method they are comfortable with.
378awhp/373wtq Custom Dom 3 & CBRD tuned 2006 STI.
"When in doubt...flat out" - Colin McRae