I'm prepping an FC for local drift events. I have a bolt-in Autopower cage. I'm thinking about running harnesses through the OEM seatback until I find a seat, rail, wheel, etc that fits within the cage.

Has anyone tried to cut holes through the seatback, use some heat to cauterize the seat cover around the holes, and route the shoulder straps through it?

 

Why wouldn't you just install the harnesses on the cage? Or are you saying you have a bolt-in, but have yet to install it?

 

Sorry, I probably didn't explain well. What I'm thinking is to mount the shoulder straps to the cage, as they normally are.

But instead of running the shoulder straps through holes in a racing seat (which I don't have yet), or running the shoulder straps around the side of the OEM seat (in which case I guess they could slide off my shoulders), I'm thinking of putting holes in the OEM seat to route the harness through. Then the harnesses would be routed just like they are through a racing seat. But I would have ghetto looking holes in the OEM seat, rather than clean-looking harness openings in a racing seat.

Besides the ghetto aspect of it, do you see any other problems with doing this?

I guess the seat would end up looking something like this, but without the neat plastic trim piece:

 

It is less safe to use a 5-6 pt harness with a stock seat than to just keep the stock seat belts. Save the harness till you have seats you can use them with.

My understanding is you have the seats with the fixed headrest?

 

Agreed