Quote:
Originally Posted by qksubi
The COBB acessport will do the the trick and does the helix down pipe with highflocat make a differnce from stock 
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Actually, engine management won't solve the issues chris, Scott, and myself were discussing. When your injectors don't flow enough for your application, you gotta do something about it. More fuel pressure is the first fix.
Yes, you'll love the downpipe. The stock downpipe is the single worst part on the whole car, both WRX and STi. Go with the highflow cat, you won't really miss the slight gains from being catless, you'll stay in Street Touring/Street Mod autocross, and the cat will probably prevent boost creep up here.