Quote:
Originally Posted by 914kid
I am in the same boat and I love the way a JB4 335i drives but for the time being I have decided against it. This car is fast already and has been decently reliable I am afraid after getting the tune I will potentially ruin the reliability.
Another less "risky" option to look at is that alpina transmission flash if you have an auto.
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Mine is manual. Indecisive