Uploaded March 2023 | Updated September 2026, 7 hours ago

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This mod is Cummins NH Series straight pipe sound for truck mods
(These engines are so old and underpowered that it wouldn't make sense to put it in any SCS truck)

Version 1.0 Feature:
-Cummins NH-220/230/250 naturally aspired and NHS-275/300 supercharged engine with straight piped sound
-Backdrop manifold for NH models and split manifold for NHS models
-Early adaption for 1.47 sound update
-Max volume regulation to reduce chance of sound flickering and prevent too loud sound
(Highly recommended to put engine, exhaust, turbo volume slider to max)
-Sound attenuation effects for realistic sound fade off from the distance
-Sound distortions and directional effects for realistic distortions from different positions around the truck
-Included Customizable Additional Supported Trucks (CAST) in the mod

Quick tutorial on how to use CAST
1. Goto def/vehicle/truck/
2. Rename one of zcustom_xx into truck def name you want
and you should good to go

Credits:
Slav Jerry - sound samples, mixing and modding
Serialblack - supercharger sound and technical consultant

Download link:
forum.scssoft.com/viewtopic.php?t=318706

TruckyMods:
truckymods.io/american-truck-simulator/sound/cummins-nh-series-straight-pipe-sound

Interior soundproofing effects pack:
steamcommunity.com/sharedfiles/filedetails/?id=2951385680

reference NH:
youtube.com/watch?v=i2PGA2Y_KBA

reference NHS:
youtube.com/watch?v=QMQ1wAgzYyw

Patreon: patreon.com/SlavJerry
My discord server: discord.com/invite/8pYHD2fuUT
Buy me a coffee: buymeacoffee.com/SlavJerry
PaypalMe: paypal.me/slavjerry9625

Chapters:
00:00 Cummins NH w/ backdrop manifold
14:49 Cummins NH w/ split manifold