D dyzfr6 New member May 7, 2007 #2 is it possible to get rid of the flutter when you use a catless downpipe. 06 wrx, thanks
mikebike357 New member May 8, 2007 #5 I believe you can adjust the wastegate arm to correct the flutter....
Evan Active member May 8, 2007 #6 if you move the wastegate arm, make sure your peak boost doesn't change.