Safety first you scoundrels

[Evan]

I might be down for a used seat if its cheap and no one else wants it evan. Why is it bad to have a harnessbar and harnesses in a car with the original seats? The back breaking loose and slamming into the bar?

that is one reason it is bad, the other (more important reason) is that when you do not have rollover protection, but you have harnesses, in the event of a roof collapse, your head becomes the rollbar. factory seatbelts and seats are designed to allow your body to pivot forward or backward when the roof collapses. harnesses hold you straight up

imagine this

if your body was being held rigid upright. yup, you would be dead.
as it happened, both driver and instructor were wearing stock belts and were forced forward under the dash in the impact. both were fine. (it happened at summit btw)