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Originally Posted by mfanatic325
I'm chill! We're cool, no worries 
I was merely politely asking  |
No worries . You know me I've posted everything about my many mods and adventures tracking a supercharged Z4M , both good and bad . I'm not advertising for anyone , but when a product hold up and performs for 15k miles of hard track use , I'm going to tell someone when they ask
. Performance gearing is a great company too and it's good to have two great options as enthusiasts looking for differentials . Let us know about how you like the diff when you get it on track !