Merlosso wrote I had no complaints about the car in stock form but having past experience in cars with ECU tunes, I knew I wanted something for the M3, and BPMSport delivered. The car is improved in so many different ways. First, the car just seems so much smoother. It's hard to describe in words but it just feels so much more refined. It idles better, it revs more freely and smoothly, and yet at the same time it is more aggressive and has a little more snarl in the induction sound (which I love). The throttle response is greatly improved in all three modes (Normal, Sport, and Sport +). In Normal mode, the response seemed just a little too sluggish but now it is perfect for daily driving. ..
Thanks for the reply Merlossso, I've read your review a LOT! You are why I
really want to get the tune!
But here's the thing...... I always drive in sport mode+D5 (S5 when I want to clear my path

)...... The only reason I don't drive in sport+ is distraction. (Dora+2yr old son

in the back seat)
I think I tried the normal mode for a day....... horrible....car felt like it was asleep.......
I'm just trying to get a sense of how much better the 240E upgrade is compared to the stage 1 tune. Thanks.