Originally Posted by ulrichd
As of a few days ago my 128 comes with the best possible option, not available at any price. It will not make it faster or look more aggressive. It's paid off!
Originally Posted by ivan-128i
Did you talked to Active Autowerk to see if they can tune DISA ?
Yes. Eurocharged, AA definitely tune for the DISA.
Other North American tuners exist, but have yet to give me clear answers or I need to contact them (Evolve, OE, ESS)
DISA works on its own too, but its not used for its best potential. However, seems that ~255 hp or ~220 whp is where their tunes top out at for x28i with DISA.
Then there is the expensive world of German tuners: MS tuning, Digi-Tec, Winter tuning, DS-motorsport, etc.