Besides the ECU and wiring:
- high pressure fuel system, stock tank modified with return or better yet a baffled tank.
- Electric fan and related hardware/wiring.
- Depending on the swap you may need some shifter boot parts and accessories
- If swapping in a manual you'll probably want a different shifter handle unless you have long arms and short legs.
- Some sort of an intake tubing/filter/MAF solution.
- You'll need to figure out wiring/plumbing for your accessories. PS, Alt, AC, etc
- Driveshaft will probably be a different length or require different u-joints depending on the swap.
-You may need to purchase a new longer/shorter speedometer cable depending on your swap.
That's all I can think of at the moment. Good luck with the swap.
