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Old 10-08-2012, 07:43 PM   #6
gutie04
Scooby Newbie
 
Member#: 219717
Join Date: Aug 2009
Chapter/Region: South East
Location: Milton, Florida
Vehicle:
05 FXT Dom2.5R
4EAT FTW!!!!

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What shop did you go to? Are they a Subaru shop?

Look at your Uppipe, the heat shielding on them is notorious for rusting and creating a rattle at certain rpms. What could be happening is you get that rattle and the car recognizes it as knock so it pulls the timing and greatly reduces your power.

I highly recommend you get in the TXIC forums and find some guys in your area that can either come check out your car or recommend a Subaru Tuning shop to you. I can pretty much guarantee you need to have a stock STI map loaded on your car.
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