The T piece is under the rear end.
My blog is in french, yes, I'm a french
You can see pictures and link.
My must have hop up for bashing is :
-bearing ball set
-alloy shock (kyosho, asso, losi, TQ... whatever)
-better tire front and rear
My must have hop up for racing is :
-the same for bashing plus :
-TC models 22mm turnbuckle and ball end set
-optional motor plate
-b-fast diff kit
-double dee's rear tire and groovy front tire (Jconcept)
-alloy hexagone for wheel
Choose what to buy if you want to bash or race