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Old 03-16-2010, 02:01 AM   #1
Registered User
Join Date: Apr 2007
Location: iowa
Posts: 143
My Ride: 330ci
dyno charts for underdrive pulleys? mpg?

I have an 04 zhp 330. I have searched and couldn't find any dyno charts from you guys before and after with under-drive pulleys. Also I didn't see any mention of mpg after install. I have gotten a new job where i put a LOT of miles on my car and can justify a performance mod to the better half if the mpg are there.

Anyone have some info/charts for me?
tylerc is offline   Reply With Quote
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