Nice right up, Shiv is the man if you are looking to chip your 3.0 TT engine. This guy has the most positive response to this engine and even tho dinan also has a chip for this engine, i would still go with Shivs chip just cause of his history and cleint response on other forums.

As for BMW detecting the software, i feel they shouldnt mind as long as its mapped correctly and peeps with 335is are rocking it with no problems other than the problems that everyone with that car is having. I know BMW must have more reasons for the chip upgrades, but common, i am thinkin of getting a x35i instead of the x50i just cause of this chip.

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" Despite its supercar attributes, the M5 still doubles as a soberly practical, spacious saloon - only with the ability to scare four passengers in comfort all the way to the local coronary unit". Top Gear