S4 to S5
 

can u use S4 N/A front cover, OMP, and TB on a JDM TIIS5 engine? (doing a swap)

you would need the t2 front cover and tb. the OMP you can use. i have a tb if you need one.

I'm pretty sure at least the throttle body is different, and the actuator arm for the OMP. The throttlebody is upside-down and backwards on the TII compared to the NA. The TII opens to the left instead of opening to the right. But you can run an S4 TII throttle body with the S4 OMP actuator rod on the NA OMP.

If you use an N/A front cover though, it won't be drilled for the oil return line for your turbo.