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Old 03-03-2021, 05:10 PM   #1
Murf1500
Scooby Newbie
 
Member#: 500023
Join Date: Apr 2019
Vehicle:
2017 Wrx

Default 15+ WRX 6spd noise on decel w/ LW FW

Hey guys,
my car has a act hdss w/streetlight fw, perrin pitch stop/perrin transmission mount, kartboy diff lockout, and is on coilovers. I'm not expecting my ride to be quite, but I just wanted some input from other users. I've read some pretty old threads that say it has to do with drivetrain harmonics and such. A lot of them were saying try a 6-8psi differential between front and rear tires, so i tried it and it didn't seem to have any effect. The clutch and fly wheel are relatively new (3500 miles), so if this is what a light flywheel entails i'll just deal with it. I have some videos below, it almost sounds like it is chugging on decel while in gear, does not make the noise any other time. It's the worse in 3rd and 4th.



Thanks in advance
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