Exhaust Builder v1.0b (for All Cars) -- Free Download --

CSP 0.2.8 or newer is required(0.2.11 Recommended)

Just Unpack folders in your assettocorsa/apps/

Make sure your UI scale in the CSP settings is set to 100% - check attachment

v1.0b update:

-Reverse engine sound is fixed

v1.0a update:

-Disabled SFX effects in in-car view and for ECU cars (temporary)