Originally Posted by BMW-M-Mexico
335 "d" means diesel? Then I suppose its a OK gain. I really don't follow diesels at all.
Yes, 335d 286hp means the 335d with stock 286hp. If you click on it you will see the specs of the ESS tuning software which gives you 335hp.
ESS 335i software is still in R&D, but I have some rough power estimates from them :
Stage 1 360hp
Stage 2 380hp
Stage 3 400hp (with upgraded IC)