Originally Posted by erm324
Bren is a great guy and his shop is home of the highest hp naturally aspirated E9X M3's. He has hit over 400whp with multiple cars (provided they have the proper bolt ons), and is currently playing around with E85 on his own personal M3. Give him a shout, I highly recommend him - you will get more power out of his custom tunes than any off the shelf generic tune.
Oh and fwiw, DONT get a vishnu piggyback for this car - better off with a flash.
Currently made 12whp and 10wtq more with E20/E85 over 93OCT. Ending with 433whp and 310wtq on a DynaPak