Unless your exhaust work removed a DPF that was there in the "before" numbers then I have strong doubts that exhaust and fmic = 25bhp.
It's achievably if the exhaust work included a DPF delete though
Would like to see a real dyno output!
Previously: 2003 Peugeot 206 1.6 8v | 2006 E90 320d M-Sport, 19" BBS CH, Full Ice-cold JL audio install, August 2010 Total BMW 6 page feature car. | 2003 Nissan 350Z GT Coupe 286BHP
Now:2010 E92 LCI 335d M-Sport