599 4 point harness install and track wheel choices?

I have a 2010 599 HGTE that I HPDE/track for pleasure. Would like to install a 4 point harness for increased safety and so that I can use a HANS device. Already had one total front tire failure that ended up ok with only tire and wheel damage, but it was at slower speed and in a fortunate place on the track. Main straight speed and less run off would probably have been a different story.
The 4 point harness was never offered in North American 599's to my knowledge. Does anyone know if the top attachment points behind the luggage shelf back panel were installed in all 599's and were simply never used and covered over in NA versions?
Anyone have any experience in installing a 4 point harness in a US car and what's involved?

Also getting a set of track wheels to save the expensive and hard to get HGTE wheels. Have found stock 599 pentagram wheels (19'F/20"R) or Monolithic Challenge (all 20") wheels. Which are better strength wise: stock, Monolithic Challenge, HGTE? HGTE's are 1/2" wider in front but I don't think that's a big factor for non-competitive tracking? Could obtain another set of HGTE's if really the best choice.
Any advice appreciated!

 

Thanks, SkidKid, I will do a more comprehensive search on the harness question. I have found some Challenge wheels, but had seen somewhere on a forum that being cast aluminum Challenge wheels were not as strong as the HGTE's. Not sure about stock pentagrams relative strength. Might have been George Vosburgh? And perhaps not a significant difference or concern between the 3.
Tazandjan, might you have any insight on this?

 

Thank you Taz. Appreciate the info. I have just found and purchased a set of HGTE wheels but now think I’ll save them to ensure I have a complete undamaged set for if and when I sell the car. And find a set of GTO wheels for the track. I will search for threads on the 4 pt harness install, but if you have any thoughts on that I’d love to hear them. Thanks again.

 

DZ-96 Thanks for letting me know, but I found a brand new set here close to me in the US and have acquired them. Yours look great, I'm sure you'll sell them.

 

Thanks, always kinda knew I was gonna have to actually look. Will do that and report back. And will have to really look into harnesses if the attachment points are there.

 

Thank you Terry,
I have gotten a set of GTO wheels and titanium bolts just for track use of my 599 HGTE (which I really love). Now moving on to the question of tires. I am not tracking competitively (yet?) but just for the pleasure of learning, exploring, and utilizing the car's capabilities, and I am trying to decide on tires. I have read through as much as I can find on tires for HGTE's in the forums. I have tracked it already with my HGTE wheels and tires which are Michelin Pilot 4S 245/35 ZR20 (95Y) K1 front, and 315/35 ZR20 (110Y) K1 rear. Pretty impressive tires to me.
Nevertheless I am well aware that the present limitation is overwhelmingly the pilot and not the plane.
I had read in one 599/HGTE thread about using a larger front tire, in that example a 255/35, and the subsequent reduction in understeer. Not sure exactly how far to take this considering my current modest track driving skills. Also don't know at what point I might make things more difficult for myself rather than simply expanding the performance potential. Same thought applies as to the value of going with Michelin Cup 2's, with a higher performance capability, albeit with a wear penalty.
Kind of like a diminishing return question. Wouldn't want to reduce my ability to advance my skills (or safety!) by overreaching. (Putting aside that tracking a 599 is a bit over the top in the first place....)
I do assume a larger front tire, even a 285 would not present a clearance issue in my front fenders as they came OEM on a 599 GTO?
Any thoughts on going with a wider front tire, and to what size? Stick with 4S or go Cup 2?
Obviously, the decision and responsibility is mine and mine alone, just interested in what more experienced and knowledgeable persons might think.......

 

Thanks Terry, great advice and I'm pleased it's what I was thinking too. Makes total sense since I am +1 on the rear already. Appreciate the insight!

 

After a lot of info gathering re: submarining with 4 pt harness, the hassle of install, and ease of normal road use since I drive it basically every day, (makes grocery runs and errands way less of a chore!), I went in another direction. After talking to a bunch of racing guys for their point of view on increased safety for non-racing / track events in a road car, and also a few HPDE instructors who regularly put themselves at risk with unknown drivers, I went with the Simpson Hybrid S Head And Neck Restraint - 3-Point Compatible setup.
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Obviously not equivalent safety to a racing 5/6pt harness with a Hans device but seems to be a good compromise offering a significant increase in neck safety without modifying the car or compromising ease of use for street driving. Hoping I never have the opportunity to report on its effectiveness at high speeds...............................