CAT 3406C Straight pipe sound

Engine Stock 350, 425HP Tuned 500, 565, 700HP 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)