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Old 02-07-2006, 10:38 AM   #9
2fst4u
[boosted 2.4L]
 
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Join Date: Dec 2004
Location: Central PA
Posts: 1,537
2fst4u is an unknown quantity at this point
its called an exhaust cut out valve. not really going to sound like a muscle car, tho. not sure on hp increase, but low sound will be lost.
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