I like the DT diff. it is great I changed mt XXX-T MF 1 trans over to it I run a Quark 125B esc with a tekin redline brushless motor 537-448-356 had issues with the diff ball setup after 3 or 4 race days diff would be shoot.
Ok your topic stock electronics in the DT stink esc cannot handle a lipo, lights cause radio interferance and 2.4 is bad news
a decent brushless setup will give you more options than the speed T- racing bashing or just having fun
Speed T is just that speed flat paved parking lot period.To change over to a racer as in offroad New shock towers fr/r also new pinions new spurs.new tires and rims.
Thats just my 2 cents worth TnT