A small handful of us have harness bars of some variety. Unfortunately from what I've read here recently, the vendors that sold them can't be reached/don't make them anymore. One such vendor was Robispec.

The GT Spec 4 point rear strut/ b pillar cage was designed to be a harness bar as well and works perfectly with my Takata harnesses... ill just through that out there.

Hit up RavSpec if you're interested.

i would but it wont fit my sub box howbad of an idea would it be to use the stock strut bar in back?

Very bad idea. It's a decorative cover over a metal brace. Get the Robispec bar at the minimum. I bought one of these, http://www.the370z.com/exterior-inte...rness-bar.html But, like others have said, the roll cage is the way to go.

any way i can get a direct link?

and how does everyone get rid of the seat belt light on both passenger and driver?

Try contacting member BGTV8 Nissan 370Z Forum - View Profile: BGTV8 He helped me with mine.

Racing seat airbag light fix.

any other options? that might be a bit easier to do?

I would be hesitant to do a fixed back bucket seat and a set of harnesses at the same time. In a sudden impact where you're slowed down instantly the only thing that will move is your head and you'll definitely break your neck. I would only consider a seat retaining the factory belts. Race car safety equipment is designed as a system. Roll cage, seats, harnesses, HANS device... It's like those guys that get roll cages on a street car and just leave open, exposed metal tubes without wrapping them in foam. Without a helmet, HANS device and harnesses you'll end up cracking your head open like an egg.

Amuse makes a strut bar replacement that also serves as a harness bar. You're looking at about $1,000 for that version, but it's very pretty and its JDM (if you like that kind of thing). Check out Simota1's build thread. Contact Bo at 370ztune if you want one.

i meant to get rid of the seatbelt/aierbag lights haha

Unfortunately, the simple truth (which we could have pages and pages and pages of in-depth discussion about, but...) is that safety system conversions are best thought of as a binary proposition. Either you leave it all stock, or you go straight to stripping out the stock airbags/belts/seats, installing a full 6-point cage, 6-point harnesses, and fixed racing buckets (and always wearing a helmet, and maybe a neck device as well).

I wish it weren't the case, I fought a lot with wanting various halfway options as my car progressed, but there's always a big safety downside to any halfway solution that tries to mix the stock and racing configs. The only halfway option I did before I went all out was using some reclinable semi-racing seats with high bolsters (tradeoff was loss of side airbag, not huge), while still using the stock belts.

Not really true. It will be rougher than stock on you, but even racing harnesses do flex and stretch under impact loads (I've seen figures as high as 12" of stretch movement quoted somewhere, in a direct high-speed frontal hit). Almost everything flexes and stretches to some degree in an impact, even sheet metal and "fixed" seats. The notable exception is the rollcage itself (or anything else equally stout, but on a lightweight race car there won't be much else).

Just keep in mind that even wrapping in foam doesn't protect your bare head from a cage. The right kind of foam for cages is high-density stuff, which is designed to make your helmet less likely to crack, but still feels pretty much hard as a rock and will still damage your head pretty badly without a helmet. The wrong kind of foam (the soft stuff like a pool noodle that you see people use on Jeeps and whatnot) will protect your bare head when you accidentally bang into the bar getting in and out of the car, but may as well be a sheet of paper if you impact the bar with your head in a wreck.

Even the lower bars of the cage near the footwell are dangerous - your legs flopping around in a wreck can break a lower legbone against one if you don't at least pad them. On real race cars I've seen them just line the outside of the footwell with a big solid sheet of aluminum and/or a big fat high-density pad to prevent that. Cage bars simply don't give at all, so whatever hits them has to break.

I run BGTV8's harness bar. I think he bought the tooling from the shop that built them but I doubt it would be very cheap to get another made. It's safety calculation you should make yourself though. As an FYI I had no problem with NASA inspections for HPDE and I doubt there would be any issue with it in TT either.

Still disagree. The cheap thin sheet metal the bars bolted to is not meant to withstand your body at 2-3-4-5-6-7 etc G force pulling on it when you smash into a wall. The bar can be tough as **** but the sheet metal will be no different than paper at high speed. You're going to break your face on the steering wheel.

Here's a picture of mine I took the other day. stradia II Reims edition http://img.tapatalk.com/d/14/01/12/unu9u9yv.jpg