2000 VR4 Galant

[Poita]

the wave spring, elaborate please (want to learn)

I don't know enough about it, but head to OzVR4 and there is plenty of info. MV Auto is doing a group fix currently.

Edit: Copied from the group fix thread in OzVR4
Remove the planatery gearset carrier and tig weld the pins in place (first common fault)
install new one piece wave spring
Total quote at the moment is $1200
For an additional $200 he can remove the valve body and "install" a shift kit he developed for the W5A51 in the ralliart magna. This involves modifying the flow characteristics to give a quicker and firmer shift.

So the total for the wavespring, carrier pins and shift kit would be $1400 per car.

I think the issue with the pins is they weren't welded properly or something. MV Auto welds them securely into place.