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upgraded turbo question
my car is a 2004 wrx stage 2 with a 38mm external wastegate.
recently, i took of my magnaflow 3" catback and replaced it with the stock wrx catback, which on the 04 is a dual tip. i still have the perrin 3" dp on there.
the car runs great, and is silent until the gate opens, then its a different story
after i swapped the exhausts, i really couldnt notice any loss of power...the car pulls strong and hard, and i seem to have gained a little down low.
now my question is, if i go upgraded turbo soon, along the lines of an 18g, would i need the 3" catback, or could i keep my stock catback? how much power would i be losing if any?
i know i could always get a borla hush, which is the best of both worlds, but id rather put the money to a turbo rather then a third exhaust
If you are really worried about it why not just use the axle back portion of the stock exhaust? That way you are pretty much keeping everything open or 3" until the very end of the car. It shouldnt really make too much of a difference unless you are trying to squeeze every last bit of power from your setup. I have seen a 400+hp STI with stock CBE. Have you talked to a tuner about how they feel with that setup also?
Yea i think you could ok with an 18g and stock CBE but it would be more efficient (more hp) if you had a 3" CBE.
You can always sell your magnaflow on ebay or nasioc classifieds, or craigslist.
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