I still don't get any people are adamant you
need the alu servo arm. No one I know who runs a dex410 has replaced the kit plastic one. The only reason I have an alu one on my car is purely for bling.
Listing the items on my which weren't in the kit.
Red parts set - I don't like the gold/yellow
alu gearbox - bling. I never had the gearbox pop out using the plastic kit ones.
HD ball cups - took out the play. I never had a kit one pop off.
Big bores - Functional yes, but not essential. Robbo and Bowater still run kit shocks. Big bores look so pretty too

Plastic side pods - slightly easier to drive over alu ones.
Hardly needed to spend loads of money upgrading it.
Parts broken/replaced in 10 months of ownership. At a guess roughly 300 races...
1 hinge pin
1 front wishbone
1 rear centre shaft wore and was replacement before total failure
both front driveshafts - same as above.
1 front shock down
1 shock eyelet split
1 set of plastic side pods. my lipo moved during impact and broke the points where the T piece fits to them

Not a problem on the V3
2 wings
The car is super competitive out of the box and very strong in practically every area