Quote:
Originally Posted by Inline_6
Hi all just quick intro. Recently bought 13 X3 Msport with 88k miles , one owner. Sweet ride , just input on tuning ECU i have friend who does tuning in NYC shop . He mentioned tune for this car and horsepower to be close to 70hp increase. Price $599. How safe is to tune these models?
|
Here is the engine you have.....
https://en.m.wikipedia.org/wiki/BMW_N55#N55B30M0
With appropriate supporting modifications ..... you can tune it quite a bit.