Changelog
In version 1.3:
A significant upgrade that improves reliability and extends functionality. Volume, openness, equalizer, and pops/shots are now adjusted using a real-time algorithm instead of editing exhaust system components, so the exhaust can no longer detach or distort on any car or engine. Pops and shots have returned, the presets are working correctly, and the sound has become louder.

Description
Features
- 13 convenient sliders: Volume, Openness, Pops and Gunshots, Volume of pops, Sharpness of pops, Flame, Bass, Brightness, Drone, Rattle, Body, Volume when you press the gas, Volume without gas
- 5 presets in one click: Custom, Muscular, JDM Turbo, Racing, Quiet/Hidden
- Works on all official vehicles at full power, as well as on most modifications
- Offline — has no dependencies, uses the game's own engine sounds

Installation Instructions
Official (standard) cars:
Open the "Spare Parts" menu (wrench icon).
Set the "Additional Modification" slot to "Universal Exhaust System Tuner" → Apply.
Open the menu "Tuning" → category "Universal Exhaust system tuner" → move the sliders or select a preset.

Mods:
Open the "Spare Parts" menu.
In the "License Plate Design" slot, select "Universal Exhaust Tuner (mods)" → Apply.
Set it up the same way in the "Tuning" menu.

Credits
JayBeam