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Old 06-21-2010, 03:24 PM   #4
Scooby Specialist
Member#: 112986
Join Date: Apr 2006
Chapter/Region: NWIC
Location: Camano Island
N/A Cam'd & Cornfed
DOM TUNED 06 Impreza


you can increase the diameter of the exhuast, although you can also increase it to much. The 2.5 n/a motors seem to like right about 2.25" to 2.5" with your engine you may want to stick with 2"-2.25" exhaust diameter. Post some pics of your car btw.
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