For all the time that shotgun style muffler has existed, no one who took this mod as a basis has made a UVM Map. That's why I decided to make a version that doesn't require UVM Map, now the muffler will always be fully chrome or gray if you play without reflections.
This mod does not add a new muffler, it replaces the red racing muffler model from the magazine. To change/replace a model you only need a 3D editor. But you can just download this mod and get a replacement for the red racing muffler with this oval twin pipe one.
How to install:
0. You need have Mod Loader
1. Copy with replace RacingMuffler.dll and Assets folder to Mod Loader mods folder
My other mods
My mods are open source, so you can use my code and resources as a basis for your mod, no need to ask permission. If your mod is mostly based on mine, indicate me in credits. But if you reupload my mods without any changes you will be banned, not only on this site, don't waste your time, mine and the moderators.
My GitHub (source)