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      07-09-2018, 10:01 AM   #6
First Lieutenant

Drives: 2015 F80 M3
Join Date: Oct 2016
Location: Campbell, CA

iTrader: (1)

Originally Posted by Gabea21 View Post
Not trying to argue "which is better" because flash tunes do automatically void warranty. Although i do agree flash tunes offer more bang for your buck. Some may find that they rather not take the chance. I appreciate the feedback though.
Neither automatically void your warranty as a whole. For example, they cannot void suspension, brake, or electronic malfunctions because of a tune.

Both are detectable even after reverting back to stock. If you go into the dealership with a spun crank hub for instance and you had a tune on there at any given point in time before, you will not be covered. They do have ways of detecting any sort of tune, including JB4.

Also, just going in for service, its much easier to remove and install flash tune.

... This guy put his "new" one up for $400