[Jakebob]

I'm thinking about getting rid of my E91 next year and getting an F20. I've heard that the N13 is quite a capable little engine and easily gets over 200hp with a stage 1. I wonder if this will ruin any warranty that's left on the car? I want to do the tuning at a small independent local tuning company where I've tuned a few of my previous, older cars.

Thanks!