Join Date: Nov 2010
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advantages/disadvantages compared to catted (besides being cheaper which is a big plus)ha
wanna run stage 2
will it cause CEL to come on and i can turn it off if it does with AP correct?
Will I be able to pass state inspection? Exhaust wont be too loud?
Brand reccomendations for one
There are many different brands and you will get many recommendations from different people on here. I personally went with HKS DP. (Just because I have used them before and like them.)
There are many different brands to choose from. Just depends on your budget and spec of the dp you are looking for.
With the Stage 2 map your ECU will be programed for the dp. So no CELs for the dp.
With a high flow cat you will pass, you will also pass with a catless if they don't hook up your exhaust to the meter.
As for the sound, with the dp installed the exhaust profile doesn't change much.
Also, I might have missed it somewhere but what exhaust are you running?
stock right now but i will be getting a perrin cbe in the future when i get the funds.
im also gonna be getting a new up pipe as well, looking at perrin
3-5hp gain is bull. It's not a restriction. <1hp on a stock WRX turbo comparing a catted bellmouth to a bellmouth. I've seen it back to back on the same car on the same dyno. I've seen subarus make 350whp with a CAT as well. It CAN be a restriction when you get a bigger turbo, but it's over stated. The Dowpipe is a huge restriction, but not because of the CAT.
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