Anything faster than 10.99 will need all SFI approved.Harmonic balancer(dampner),flex plate,trans shield,seat belt harness,helmet,jacket.Lower than 10.00 you,ll need to have the chassis certified.Probably a couple other things I,m forgetting.With the CSR Super Transhield you,ll have both flex plate cover and trans cover all in one.I,m waiting on one now to be delivered as I installed a transbrake in my trans.Remember safety is imperative for you and others.Play safe.