Originally Posted by vgame64
Once the restrictive exhaust is removed, I anticipate 400-450whp and oodles of torque.
Of course this is all just fact-less speculation on my part on what "feels right".
I'd say 350-380whp. ESS reflash makes 335hp and 630Nm (335d). Keeping in mind that 335i with ESS reflash (stage 3) makes almost the same power as Vishnu or JB3, a well tuned 335d shouldn't exceed 370-380whp, imo. Nevertheless, performance would be impressive.