CAT 3406B Muffled engine & sound

Engine

Stock 350, 400, 425HP

Supported trucks

Chevrolet bison (Smarty's patreon)
GMC general (Smarty's patreon)
GMC Astro/Chevy Titan (Cory Watson)
Ford LTL9000 (Blade's shop), (BluePrint Mods)
Marmon (Rushour109)
White Western Star (Mason Mod Shop)
White GMC & Volvo WIA (TheOtherCorey)
Freightliner
FLA/FLT (GV Mods), (Bormann's)
FL86 (HFG patreon)
Classic XL (Jon-ruda)
FLB (Harven)
FLC (XBS)
FLD (Faster CGO)
International
9900I (SCS)
9800 (Faster CGO)
9900x9300 (MrOverfloater)
Kenworth
K100E (MrOverfloater)
W900 (SCS), (Outlaw)
W900A
W900B (GTM)
W900L (Jon-ruda)
T600 T660 T800 (faster modding patreon)
CBE (HFG)
Peterbilt
359 (Outlaw)
3XX (HFG)
352 (GOON BasedBeans)
352 (KSW)
359 (FLX)
362 (Jon-Ruda)
389 (Jon-ruda), (Rollin 389)
Project 357 377 (HFG patreon)
Western Star
6900 (Bormann's)
4900XX (Heavy Duty Custom)