Here's my S2 I use in USGT club races. Bought it with Exotek main chassis, GPM towers. I've added the Yeah Racing C-hubs and knuckles, CVD's and tensioner. Running Gens Ace 3800 60c shorty, Hobbywing XERun, Graupner 21.5 motor (for now).

I found I needed more gear than I could find pinions for, picked up a spur adapter for the motor.

Have tried a few HPI/HB swaybar to no avail. Next step before buying the wire to make my own, am trying the bars from the Yokomo YZ-4 buggy. It looks to have similar bulkhead spacing, and plenty of different diameters.

Also used some self ahesive tire weights to bulk up the chassis and move the weight bias forward. CG seems to be at the front edge of the battery now.

Super glued inner and outer front sidewalls, still traction rolls. Hoping the swaybars and some droop adjustments will help.

*New account, won't let me post the pics yet