Buildjournal Exhaust Backfire Flames on E46 M3 [B-Spec Tune]

I got this from ecuworx but my car doesn't shot flames. catless..... EDIT: it shoots flame. rev up to 4.5K and then upshift. cant do it in neutral

What mods are on this e46 m3 ?

Is it possible to map the tune to only pop when the sport mode is activated?

love it check out my set up about to purchase this tune for my m3 e46. so excited

Besides catless headers what kind of exhaust setup do you have to have ?

What’s the process after installing the b spec stage 3 tune? What gear and rpms? Downshifting? Upshifting?

Is it controllable? Or it stays on

Any dyno sheets or numbers yet

That's beautiful. You mind explaining what the tune does specifically?