Originally Posted by over gear

These are what I think is the most important hopups:

1. Alloy spur holder
2. 19T mid pulley. This really free up the belts
3. Tamiya servo saver. the stock one feels sloppy.
4. 4mm taller front and rear shock tower. All my springs are standard length. 3Racing's spring is shorter.
5. Tamiya shocks. I really like Tamiya shocks and I happen to have a spare set in my box.

These are what I think is sort of important:

1. Front and rear sway bar
2. 4mm alloy wheel hex adaptor.
3. Alloy rear bulk head. The camber link ball stud would move under high load.
4. Vertical motor mount. The stock one require you to get the motor screw through the spur. I hate doing that.
5. CF upper deck. It's require for the motor mount.
6. You also need to trim the battery holder to make room for the front belt.

There are not necessary but I get it anyway:

1. Front spool. I could have jam pack the gear diff.
2. Front alloy bulk head.

Next on my wishlist is rear universals and a 416 bumper foam. The stock foam is sorta soft. I crash more than I should.