I'm not sure about including these engines because most of them are SOHC, also the supercharger idea is great, i might add one
Some updates in the R34:
Nismo STune body kit finished:


Fixed Nissan trunk badge (thanks to Harrison15/RedCarDriver) (you still can use the "kouki" style badge):

Seibon trunk:

Custom trunk:

Seibon hood + Mines canards + custom lower lip in stock front bumper:

Taillights now have opacity:

Mines body kit finished:


Led taillights:

Some adjustments/fixes/improvments in the chassis mesh:



I'll post more updates soon