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Posted by 99-540iASport on July 01, 2001 at 22:12:22:
In Reply to: change 3"pip catback ext system make car faster??? posted by Bimmer 540i on July 01, 2001 at 22:02:55:
(posted from: athm-216-216-11-66.home.net (216.216.11.66))
if i change 3 inch pipe after Y-pipe(downpipipe), 3 inch cat, and 3 inch muff. would i feel faster or...?? did anyone change yet?? how is it??? how $$$??? any tip to make car faster??? i have computer ,and super chg done.
my car 97 E39 540i Auto..
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