I am not the Owner of this mod. Download original here: https://www.beamng.com/resources/backfire-afterfire-mod-now-customizable.6475/

This is a mod to add extreme backfire/afterfire to every vanilla vehicle in Beamng. Just select the part "Afterfire" in Additional parts, like in this picture. After that you can now customize every aspect of it in the Tuning Menu. By default it goes on for way longer now.

It may not be too realistic and for some vehicles it doesnt work with certain exhausts/mufflers. Because of that you may just have to put on a custom or race exhaust or even take it off completely. It just makes the normal Beamng backfire more extreme, so no custom textures etc... -> this mod doesn't add flames if your game never shows any flames (f.e. on race-/dragracecars) ... that is a problem with your game/graphics and not the mod. Try to up your FPS if Flames dont show. If it is capped at 30 FPS it may not show flames.

For more flames, pops and bangs spam the gas pedal by stepping on it and letting of immediately 😁

New Video i made to show how it works together with my straightpipe mod with the bastion as an example.
!!! ATTENTION, IF YOU HAVE A GRAPHICS MOD OR RESHADE MOD INSTALLED, THE FLAMES MIGHT NOT BE VISIBLE.
ALSO CHECK YOUR GRAPHICS SETTINGS TO MAYBE FIX MISSING FLAMES!!!

Have fun! 😁

Known issues:
-flames not appearing for some people (not an issue of the mod itself, try experimenting with your graphics settings).
-flames may disappear after some longer time of driving with the mod turned on

Straightpipe mod for more compatible exhausts:
https://www.beamng.com/resources/straightpipes.26848/