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Old 01-09-2011, 05:46 PM   #11
mike.nite
 
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Drives: 2011 2SS L99, 2010 LT RS
Join Date: Mar 2010
Location: NY (USA) ZH (Switzerland)
Posts: 437
So after the first replies and some more reading I would say that without intake+headers it doesn't seem to be worth it to go from 2.25" to 2.5".

But with the LT headers there probably are some gains + some said that it will also smoothen out the sound
(without the 2.5" to 2.25" and back convertions).

Still not shure if it is worth a try..
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