Sorry for the late reply. Dealer installed. Just today I drove from Ponte Vedra, FL to Orlando and got 40.6 mpg doing 74 mph with the Dinan upgrade. Really amazing.Thanks
Ive previously done the performance tune on a 320, very significant difference, really changed the car.
I'm enjoying the 430, no complaints, but thinking about it. Debating though, the longer term impact on a vehicle I'd like to keep for awhile. Need to research a little further..did you have it done at a dealer?
I think you'll love it. I can't speak for the x30 cars, but I have the Stage 1 and FreeFlow exhaust on my 340i and they are both fantastic.Has anyone installed the Dinantronics Performance Tuner Stage 1 on their 430i coupe? What are your experiences with the product?