my friend (the bastage) got a brand new 2003 subaru wrx now he's modding it, he is getting a boost controller on it and is wondering about putting a piggyback fuel controller. There is a cold air intake and new exhaust work being done to it real soon. Any of you guys know about this stuff and if its worth investing in?? Also can you point me in the direction of a good online resource for subaru tuning I'd appreciate it!!!
