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Old 04-03-2013, 06:39 PM   #7
Scooby Newbie
Member#: 346278
Join Date: Feb 2013
Chapter/Region: MWSOC
Location: Wisconsin
04 WRX


Originally Posted by Concillian View Post
3 port boost control requires significant tuning.

Alternately, you can use that 3 port as a 2 port via re-plumbing it and use the restrictor. This would give similar enough results to the stock for that Cobb tune to work for you.

Sounds like it's probably already tuned though if it had a 3 port... which means an off-the shelf tune might be worse.
Awesome, thanks. I might take this route in the meantime, work up to the protune. The previous tune gave me lean codes...And had trouble getting the car to idle after accelerating. It hit target boost properly, yes, but it was in need of some tweaking.
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