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Old 01-04-2013, 05:53 PM
RambleJ RambleJ is offline
Officially Welcomed to the 'Fest
Location: Las Colinas, Tx
 
Join Date: Oct 2008
Posts: 419
Mein Auto: 2012 535i M-sport
I have had nothing but great experiences with OE tuning. I dropped my JB3 for their tune on my e60 535i and never looked back. There was more power, smoother delivery and it was completely invicible to the dealers.

I know that because I had numerous issues worked on the car with not one worry about my warranty. I never tried to hide the tune by uninstalling it, just dropped the car off as is.
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2012 535i M-Sport

Previous BMW's: 87' 528e / 04' 325i / 07' 335i / 08' 335i / 08' 535i
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