addedVehicleAudioSettings.ini (if you're using fastman92 limit adjuster):
[ninef]
structType = 0
field_1 = 42014
flags = 0x2AA628 
floatAsInt_A = -34.0
floatAsInt_E = -2.0
engineLowSound = STREAMED_VEHICLES_SUPERCAR_2_SUPERCAR_2_ENGINE_LOW
engineHighSound = STREAMED_VEHICLES_SUPERCAR_2_SUPERCAR_2_ENGINE_HIGH
exhaustLowSound = STREAMED_VEHICLES_SUPERCAR_2_SUPERCAR_2_EXHAUST_LOW
exhaustHighSound = STREAMED_VEHICLES_SUPERCAR_2_SUPERCAR_2_EXHAUST_HIGH
revsOffSound = STREAMED_VEHICLES_SUPERCAR_2_SUPERCAR_2_REVS_OFF
field_26 = 640.0
field_2A = 440.0
floatAsInt_2E = 2.0
floatAsInt_32 = 0.0
field_36 = 2700.0
field_3A = 5400.0
floatAsInt_3E = -2.06
floatAsInt_42 = 2.3
field_46 = 338.0
field_4A = 140.0
floatAsInt_4E = 5.0
floatAsInt_52 = 4.5
field_56 = 140.0
field_5A = 60.0
floatAsInt_5E = 4.0
floatAsInt_62 = 6.0
floatAsInt_66 = 0.5
field_6A = 50.0
field_6E = 50.0
floatAsInt_72 = 0.0
floatAsInt_76 = -10.0
engineWaveShape = WAVESHAPER_CURVES_OVERDRIVE
floatAsInt_7E = 0.0
exhaustWaveShape = WAVESHAPER_CURVES_OVERDRIVE
floatAsInt_86 = 0.0
floatAsInt_multiplier1200_8A = -0.5
floatAsInt_multiplier1200_8E = 0.80333
engineIdleLoopSound = STREAMED_VEHICLES_SUPERCAR_2_SUPERCAR_2_ENGINE_IDLE
exhaustIdleLoopSound = STREAMED_VEHICLES_SUPERCAR_2_SUPERCAR_2_EXHAUST_IDLE
floatAsInt_multiplier1200_9A = -0.333333
floatAsInt_multiplier1200_9E = 1.0
transmissionSound = VEHICLES_TRANSMISSION_1
floatAsInt_A6 = -8.0
floatAsInt_AA = 4.0
sound_AE = VEHICLES_ENGINE_RESIDENT_NULL_LOOP
floatAsInt_B2 = -8.0
floatAsInt_B6 = -2.0
exhaustPopSound = NULL_SOUND
airIntakeSound = TURBO_3_WRAP
floatAsInt_multiplier1200_C2 = -0.666667
floatAsInt_multiplier1200_C6 = -0.5
dumpValveSound = NULL_SOUND
startSound = STREAMED_VEHICLES_SUPERCAR_2_SUPERCAR_2_START
hornSound = INFERNUS_MULTI_HORN
openSound = VEHICLES_EXTRAS_SPORTS_LUX_OPEN
closeSound = SPORTS_LUX_DOOR_CLOSE_RND
trunkOpenSound = VEHICLES_EXTRAS_SPORTS_TRUNK_OPEN
trunkCloseSound = VEHICLES_EXTRAS_SPORTS_TRUNK_CLOSE
field_E6 = 0.5
suspensionUpSound = PNEUMATIC_SUSPENSION_UP
suspensionDownSound = PNEUMATIC_SUSPENSION_DOWN
field_F2 = 0.4
field_F6 = 1.0
policeScannerManufacturerSound = POLICE_SCANNER_MANUFACTURER_MAN_PFISTER
policeScannerModelSound = POLICE_SCANNER_MODEL_MOD_COMET
policeScannerVehicleCategorySound = POLICE_SCANNER_VEHICLE_CATEGORY_SPORTS_CAR
gearTransmissionSound = VEHICLES_ENGINE_RESIDENT_GEAR_TRANSMISSION
floatAsInt_multiplier1200_10A = 0.333333
floatAsInt_multiplier1200_10E = 2.16667
floatAsInt_multiplier1200_112 = 1.0
floatAsInt_116 = 0.0
field_11A = 50
floatAsInt_11E = 0.0
floatAsInt_122 = 8.0
floatAsInt_126 = 16.0
jumpLandSound = VEHICLE_JUMP_LAND
field_12E = 31
field_132 = 36
ignitionSound = IGNITION
engineShutDownSound = VEHICLES_ENGINE_RESIDENT_SHUT_DOWN_1
field_13E = 0
field_13F = 0
field_140 = 1
field_141 = 3
indicatorVehicleOn = VEHICLES_EXTRAS_INDICATOR_MODERN_CAR_ON
indicatorVehicleOff = VEHICLES_EXTRAS_INDICATOR_MODERN_CAR_OFF
engineCoolingFan = NULL_SOUND
handbrakeSound_14E = NULL_SOUND
sound_152 = NULL_SOUND
sound_156 = NULL_SOUND
handbrakeSound_15A = VEHICLES_EXTRAS_SPORTS_HANDBRAKE
field_15E = 0
field_15F = 0
field_160 = 1

[ninef2]
structType = 0
field_1 = 42014
flags = 0x2AA628 
floatAsInt_A = -34.0
floatAsInt_E = -2.0
engineLowSound = STREAMED_VEHICLES_SUPERCAR_2_SUPERCAR_2_ENGINE_LOW
engineHighSound = STREAMED_VEHICLES_SUPERCAR_2_SUPERCAR_2_ENGINE_HIGH
exhaustLowSound = STREAMED_VEHICLES_SUPERCAR_2_SUPERCAR_2_EXHAUST_LOW
exhaustHighSound = STREAMED_VEHICLES_SUPERCAR_2_SUPERCAR_2_EXHAUST_HIGH
revsOffSound = STREAMED_VEHICLES_SUPERCAR_2_SUPERCAR_2_REVS_OFF
field_26 = 640.0
field_2A = 440.0
floatAsInt_2E = 2.0
floatAsInt_32 = 0.0
field_36 = 2700.0
field_3A = 5400.0
floatAsInt_3E = -2.06
floatAsInt_42 = 2.3
field_46 = 338.0
field_4A = 140.0
floatAsInt_4E = 5.0
floatAsInt_52 = 4.5
field_56 = 140.0
field_5A = 60.0
floatAsInt_5E = 4.0
floatAsInt_62 = 6.0
floatAsInt_66 = 0.5
field_6A = 50.0
field_6E = 50.0
floatAsInt_72 = 0.0
floatAsInt_76 = -10.0
engineWaveShape = WAVESHAPER_CURVES_OVERDRIVE
floatAsInt_7E = 0.0
exhaustWaveShape = WAVESHAPER_CURVES_OVERDRIVE
floatAsInt_86 = 0.0
floatAsInt_multiplier1200_8A = -0.5
floatAsInt_multiplier1200_8E = 0.80333
engineIdleLoopSound = STREAMED_VEHICLES_SUPERCAR_2_SUPERCAR_2_ENGINE_IDLE
exhaustIdleLoopSound = STREAMED_VEHICLES_SUPERCAR_2_SUPERCAR_2_EXHAUST_IDLE
floatAsInt_multiplier1200_9A = -0.333333
floatAsInt_multiplier1200_9E = 1.0
transmissionSound = VEHICLES_TRANSMISSION_1
floatAsInt_A6 = -8.0
floatAsInt_AA = 4.0
sound_AE = VEHICLES_ENGINE_RESIDENT_NULL_LOOP
floatAsInt_B2 = -8.0
floatAsInt_B6 = -2.0
exhaustPopSound = NULL_SOUND
airIntakeSound = TURBO_3_WRAP
floatAsInt_multiplier1200_C2 = -0.666667
floatAsInt_multiplier1200_C6 = -0.5
dumpValveSound = NULL_SOUND
startSound = STREAMED_VEHICLES_SUPERCAR_2_SUPERCAR_2_START
hornSound = INFERNUS_MULTI_HORN
openSound = VEHICLES_EXTRAS_SPORTS_LUX_OPEN
closeSound = SPORTS_LUX_DOOR_CLOSE_RND
trunkOpenSound = VEHICLES_EXTRAS_SPORTS_TRUNK_OPEN
trunkCloseSound = VEHICLES_EXTRAS_SPORTS_TRUNK_CLOSE
field_E6 = 0.5
suspensionUpSound = PNEUMATIC_SUSPENSION_UP
suspensionDownSound = PNEUMATIC_SUSPENSION_DOWN
field_F2 = 0.4
field_F6 = 1.0
policeScannerManufacturerSound = POLICE_SCANNER_MANUFACTURER_MAN_PFISTER
policeScannerModelSound = POLICE_SCANNER_MODEL_MOD_COMET
policeScannerVehicleCategorySound = POLICE_SCANNER_VEHICLE_CATEGORY_SPORTS_CAR
gearTransmissionSound = VEHICLES_ENGINE_RESIDENT_GEAR_TRANSMISSION
floatAsInt_multiplier1200_10A = 0.333333
floatAsInt_multiplier1200_10E = 2.16667
floatAsInt_multiplier1200_112 = 1.0
floatAsInt_116 = 0.0
field_11A = 50
floatAsInt_11E = 0.0
floatAsInt_122 = 8.0
floatAsInt_126 = 16.0
jumpLandSound = VEHICLE_JUMP_LAND
field_12E = 31
field_132 = 36
ignitionSound = IGNITION
engineShutDownSound = VEHICLES_ENGINE_RESIDENT_SHUT_DOWN_1
field_13E = 0
field_13F = 0
field_140 = 1
field_141 = 3
indicatorVehicleOn = VEHICLES_EXTRAS_INDICATOR_MODERN_CAR_ON
indicatorVehicleOff = VEHICLES_EXTRAS_INDICATOR_MODERN_CAR_OFF
engineCoolingFan = NULL_SOUND
handbrakeSound_14E = NULL_SOUND
sound_152 = NULL_SOUND
sound_156 = NULL_SOUND
handbrakeSound_15A = VEHICLES_EXTRAS_SPORTS_HANDBRAKE
field_15E = 0
field_15F = 0
field_160 = 1