RE: MT-5 gotta haves???
Diff.....the standard diff is crap, it will die very quickly. I upgraded to the FG quad self locking diff with stainless steel casing.
Alloy gear carrier and steel pinion.....same reason as diff.
Forget the gear cover, it does jack poo.
Front brakes, I dont know how ppl drive without them, must have if you ask me. I use the FG tuning cable brakes with a 12kg servo, can lock both wheels. Thinking of going hydro all 4 wheels cos they look cool.
I have never used alloy rear arms or lexan side plates.
Get a good pipe if you havent already.
AIR FILTER....most important, I have 5 spare and change it every 1 hour run time, also have an outter pre filter.
The outter is dry and the inner is wet, look after your air filter more than anything or your engine will DIE !!!!