Hi Guys

Have any of you looked into tuning an Is220d. To be honest I'm not looking to rip it up..but i'd like a little more responsiveness around the lower revs, and I'd like to know if it would have any chance of reducing the mpg even slightly..I drive pretty easy anyways so i'm not really going to be in danger of burning out the clutch..any places I've looked up are typically giving 200+ Hp and around 480Nm. Any feedback would be great.