I was considering purchasing an aftermarket bucket seat such as Bride..but if i get those i would like to have a takata race harness also...so i was wondering if it was possible to mount a 4 pt harness without a roll bar or cage

 

For show? Easily possible. For safety? No.

 

so basically if i want a 4 pt harness i HAVE TO get a roll cage or bar

 

If you roll without a cage you will be pinned in your seats by the harness and your head will be slammed into the ground.

 

cant you just press the release button to unlatch the harness?

 

In the time it takes for the car to roll over?

Also, 4-pt harnesses have serious submarine issues. There are some designed to avoid that, but generally they are less safe than 3-pt belts. The 5-pt or (more common for S2000s) 6-pt harnesses are the way to go -- if you have race seats and a rollbar.

And there really is no good mounting location fot the harnesses. Sure, you can attach them to the structure behind the seat, but then the belts are at an unsafe angle. They should come back from the seat horizontal (or nearly so), not down.

If you just want the look, you can do it. But if you do, you would be wise to use the stock 3-pt when you actually drive the car.

 

this stuff is confusing...

 

You are talking about messing with one of the most important safety systems in the car. You really ought to know what you are doing before you screw with it. Especially if it is just for style.

Race seats, functional roll bar, and 6-pt harnesses are a single safety package that work well together. Stock seats, stock belts, airbags, and stock roll hoops are another safety package that works well together. But mixing and matching is a bad idea, because some parts of those packages are incompatible with parts of the other package.

There are people driving around with seriously compromised safety systems because they wanted that "JDM race style" look. I just hope they never get into a crash.

 

I am having the exact same problem.

For the rear, Left side you can use the stock mounts but the right side is a whole another story.
i think I might have to cut, or drill which i don't want...

 

But of course it's better to look good than to feel good