[Unicorn123]

FT,

Welcome and congratulations! You have yourself an awesome car.

I will have to abstain from the emissions discussion (I use computers to solve worn out parts issues since I drive my cars into the ground), but I will say that I have never removed or defeated emission controls from any of my street driven cars. Back in the 70's and 80's (when dinosaurs roamed the earth) it was common as the control systems were a huge performance debit. Today's cars, unless you are planning on turning it into a full time track car, suffer little performance loss from the emission control systems. Your call, but I would stick with modifications and software adjustments that keep the mandated controls in place. Resale is typically easier as well. I am currently looking for another track / rally car that I can street drive as well and many guys remove the cats on their "performance" whips...I will not buy these cars.

Good luck with your new M235. It is a brilliant drive.