What are black bladders? They take they shock out of what

They go on top of the shock before you put the top on. But someone like reg might be able to help explain the difference, I tried them after a pro driver setup, and it is the only thing I have kept using. I have tried the same shock you get in the kit, because I have the 14 aswell. I found the respond on them better throw the corner. And that was the same shock oils with the same spring on the same car, but as I have said I am still learning this side of the hobby. But I tired it on a test day, with the same tyres.

Oh so they go in the shocks.

How long have you been racing?

Touring car about a year, but off road 10 years

For the new BD7 shocks, I think running their pink springs (in stock/13.5/17.5 blinky) is a great move. The kit ones are too soft and you roll too much, can't hug corners as nice but will be easier to drive. If you run modified a good move is either pink rear and gold front (harder more responsive setup) or pink front silver rear (more understeer, easier to drive). This is all referring to indoor, however I find the pink setup works quite well universally. Its a good starting point at least.