I've got a 2007 S8 and I'd like to find either a chip tuner or other type of increased horsepower tuner for this car. I've also got a Mercedes SL600 which I had tuned (Kleemann) and have been very happy with that tuning. For as many tuners as I know of for Mercedes SLs (Renntech, Brabus, Kleemann, etc.), I can't seem to find a single one for the S8. Any suggestions welcome. Thanks.

 

try MTM. I'm pretty sure they have a chip and some other performance mods. i'd also try REVO. a company called Mariani for sure makes upgrades for the car but, i think they are based in germany. Good luck. you got a wicked car.

http://www.revmods.com/mariani-audi-s8/

 

http://www.hoppenmotorsport.com/Audi.S8.52.Tuning.htm

almost forgot.