Hi,

I just bought 2001 Audi A6 2.7T with 150 000 km (95 000 miles), sport package. I would like :

1- To flash my ECU by Unitronic to get 30-40 HP or to buy a new chip ( GIAC, MTM, BRP...) ?
What is the best chip ?
What could happen to my turbo ?

2- The original tires are 225-45-R17 and now I would like to put a new tires 235-45-R17, is there any problems ?


Thanks,

 

1. You turbos can go bad. Especially with those kind of miles.
2. Your spedometer and odometer would read incorrectly.

 

I know that the speedometer will read incorrectly. But the tires will touch the fender when I turn ?