Originally Posted by Stavros
Writeup on this in latest Total BMW, fair few tuners already saying they can get 40bhp/60lbft out of it with just a remap IIRC, and its supposedly undetecable so not fucking the warrenty.
One company has an exhaust too, which will no doubt help loads if its turbo back.
The only slight prob with these "undetectable" tuning jobs, is that normally the ECU leaves an imprint of the date it was last flashed. They can then compare with their records and check.
This is only an issue of course if the engine melts etc.
I have a BMW warranty, and it is very very very good. Frankly for a poxy 40bhp I would not even consider risking it!
Why bother - you would still be slower than a well sorted M3, and still quicker than an old M3.
As Silver999 says, drive it first. I have driven one, and they aint lacking for speed.
JJ