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Old 12-09-2008, 12:51 PM   #23
Scooby Guru
Member#: 139955
Join Date: Feb 2007
Chapter/Region: NESIC
Location: Boston
2015 Subaru STI
17Forester / 18Crosstrek


Originally Posted by HerculesPeanut View Post
I can only tell you from personal experience. My Cobb Stage 1 was not noticable to the Butt dyno. My downpipe, not really noticable. My new wheels and tires, noticeable from a standing start. Your 2/10ths savings would all happen at that point and if all you are measuring is that point, it is noticeable.
You likely changed the rolling diameter.
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