My family member recently purchased an M2 and straight to our local independent Dinan dealer.
They made us a sweet deal on stage 4 installation
We dyno'd it in complete stock form on a low reading Dynodynamics it made 300 HP / 300 FTLB. Full Dinan kit including larger turbo, intercooler, intake, exhaust and tune. Overall impression the power is very smooth and linear. After 3K rpm it really picks up and is a rocket !
I love the exhaust note with only the rear muffler and in sport + the crackles are very noticeable and more over so then when it was stock.
The vehicle is DCT and the shifts are precise and it pulls nice thru the gears.
Also added BBS CI-R wheels. Needs more low. Suspension and swaybars up next
Have not dyno ran it after but once we do I'll post up the gains.
Thanks for looking