E46Fanatics - View Single Post - 04 ZHP- 18's or 19's???
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Old 01-22-2013, 11:33 AM   #7
GE Geoff
Registered User
Join Date: Oct 2010
Location: Edmond, OK
Posts: 11
My Ride: 2004 330i ZHP
What is the ET?

Can you educate me on what the ET is and why it's important?
Sold and looking for my M3!
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