Engine/Power - EJ25T (STI and 2006+ WRX) Discussions about the USDM 2006+ WRX and WRX STi 2.5 liter turbo flat-four.

couple ?? RPM Drop, Rear diff clunk. fuel filter

Old 11-19-2008, 02:40 PM
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Car Info: 04 STi 07 STi and soon 08 STi
couple ?? RPM Drop, Rear diff clunk. fuel filter

OK first off. 2004 STi TBE, Intake, Cusco Hyper Single Clutch, tune,

I have a Cusco Hyper Single clutch and ever since it got this clutch with a tune when i am driving and push in the clutch say pulling to to a stop light of something, the RPM's drop to 0-500 rpm on the tac but spring back up to normal idle is this expected with the clutch or is this a tuning issue?

Next question:

My car has the dreaded rear diff clunk. but I never got the rear diff clunk fix. now it has stopped doing it. did something finally break? my *** sags but I think it is just because of my stock struts being blown they get stuck...
so what should I look for to see if something has broken?

And finally. My STi has 72,000 ish miles and has never had its fuel filter replaced... but it has ALWAYS had Chevron/Shell top grade gas ran through it. do you think it is desprate for a new one?


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Old 11-20-2008, 01:20 PM
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Car Info: 04 STi 07 STi and soon 08 STi
24 hours, No reply??? WTF don't make me switch back to Nasioc
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