This mod basically adds a whole load of extra parts for the Hopper. I'll keep updating it when I add new parts aswell, so it's nowhere near completion yet(I think).
The current parts I've added include:
ALL Bastow V8s
Barstow i6 with a semi-truck turbo option
Diesel Barstow i6 with a semi-truck turbo option
Tubeframe chassis (makes the rear of the car really low)
Support for dually rear wheels
Supa-Low suspension springs (basically springs with much wider adjustability)
A few bugs here and there
Custom performance radiator
Some other stuff I forgot to mention
There's no config file (at the moment) so you just have to add the parts yourself.
To install it just drag the ZIP file into your mods folder.
Beta V8 Hopper 1.222