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Old 02-28-2021, 01:24 PM   #4
Scooby Newbie
Member#: 517334
Join Date: Aug 2020
Chapter/Region: NWIC
2005 Impreza WRX
Aspen white


Originally Posted by snow_bound26 View Post
It really depends on whether the car is set up properly for the BOV or not. If it's been installed correctly and properly tuned for then there isn't much of a need to change it back unless you don't like the sound. Can you go back to the seller and find out who did the install and tune? From there you could research them and see if they have a good reputation or a s*** one. But simply putting a BPV on might introduce a set of problems you haven't thought of.

If it hasn't been tuned for/has a crap tune, then that's bad because the ECU is assuming that airflow is in the intake pre-turbo and it would need to be tuned for. So this leaves you the choice of having it properly tuned by a reputable shop or making changes and still having to take it for a proper tune.

So let's start here. What is the entire mod list for the car? Where was it tuned? Who did the install work?
In that case, I definitely won't install the BPV. I appreciate the knowledge! Thank you.
The car is mostly stock, except for the fmic, air filter, BOV, and the exhaust.
The fmic, air filter, and BOV were installed and dyno tuned at a good shop here in the NW called PREracing.
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yaffirious is offline   Reply With Quote