Those are real solid #'s just from a "software" upgrade...I believe I can get a similar boost in power if I can track down an ECU upgrade for the 20b...With a few well chosen "bolt-ons" I think the 20b TT can pump out 400+ hp at the rear wheels with ease...![]()
This 335i would be able to pump out 400+ whp with exhaust and a intake.