[FrankProps]

I would like to know the best tuning options for my 2016 z4 s35i, 28k miles, I have no modifications, 18" wheels. Im considering Dinan stage 1 , and speed Buster's stage one. My z is a daily driver, bought it a year ago. I see the administrator has a great breakdown of mods posted. I would like to know mod user feedback.

I feel warm and fuzzy with Dinan's decription a of stage one, such as adjustment of coolent temp, and timing. But not too much of ho and torque gain .Speed Buster's stage one comes with an app, and much more hp.
What mods will make the engine run best or better than stock?

In addition, I would like feed back about a air intake mod. My concern with a dual cone air filters is that the intake is exposed to more dust, debris than a inclosed airfilter.

Is there a mod for the 7 speed ?

I have enjoyed reading the threads, glad I can finally make my post.