d4 bits and hop ups

[bryn]

hi all. i am a newbie again after recently digging out my old bosscat. i have just purchased a used d4 from this forum to replace it and i need a front bumper and undertray for it. where can i get them from?

also as a non wce car, are any of the wce bits worth upgrading to? and at what ££? is a one way kit worthwhile? i see that the hb uses a different style of one way system to my bosscat which uses one-way driveshafts.

i am using a 8x2 motor in it at the moment, is this ok & what pinion?

last question i promise-is it worth upgrading to li-po and brushless and how expensive is it and where from ect.

sorry for all the questions and thankyou in advance.

bryn