Congrats. You have just purcheased the best exhaust system on the market in terms of weight lost, craftmanship, design, power gains etc. IMO
I'm curious how you will find the noise of Akrapovic Evo vs your ex-M performance?
I had one, too but couldn't live with the rough/loud noise of full system so just sold the mid-section and left with slip-on. I know I left 20-25 hp (I also have Evotech software for Akra evo) on the table but very happy with the slip-on sound.