Is there any more gain from SL350 ?

[johnlondonw3]

Im considering if there's any point in trying to get more from my 7 yr old 350 by having it tuned etc ....from reading posts it seems that MSL are well thought of ...appreciate any advice on what I can do and who I should have do it

I'm after the holy grail ... more power and better economy !

 

[oldguy57]

Yes I would be interested in this also, preferably without having to sell any organs to pay for the upgrades. Anyone with an sl350 done basic mods to their car? I know obvious answer is to go to MSL.