CAT C15 Twin Turbo Sound For Kenworth Trucks 1.38

Hi guys this mod add and change caterpillar engines sound with
real cat c15 twin turbo sound.
my other cat sounds coming soon tho c-15,c16,acert series and more
Engines:
cat c15 tt 435
cat c15 tt 500
cat c15 tt 550
cat c15 tt 625
all engines have own specific norms(price,fuel cons,torque curves,engine brake power..)
Contained Trucks:
kenworth w900 scs(replace base cat sound)
kenworth t680 scs
kenworth w990 harven,frank
kenworth t900 harven,frank
kenworth t800 gtm
kenworth t610 gtm
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