Couple of items I'd like to chime in on...
* Ron's comments materials and construction are all on point...can't disagree with any of them.
* The TigerCage is certified up to 175MPH by the ECTA, and has been since 2010.
* The current lack of NHRA/SFI certification for the TigerCage is a reflection of the fact we've been 100% pursuing our shock program at the expense of the TigerCage program. Its a matter of dollars...there's more of them in shocks than cages. If/when the shock program levels out I'll get back on the TigerCage program.
* The comment about welding a nice rigid rollbar/cage structure to a thin floorpan is especially on point. The TigerCage system integrates with the structural strength points of the specific model it is designed for in at least two different planes. That way one set of fasteners is always in shear instead of just tension.
* we use 304L stainless for several safety reasons:
1. in addition to the tangible material strength properties, austenitic stainless like 304L has the ability to deform in a predictable manner upon impact. This means it will tend to absorb crash impact energy instead of transferring it to the driver. In addition, once deformed it will take a set with a significantly increased yield [bend] strength. [think work hardening without the brittleness]
2. by avoiding a coating we avoid any possibility of the installer covering up an incomplete/inferior weld. Ever wonder whats under that nicely smoothed "weld" joint?
* the aesthetic and convenience features of using stainless are merely a happy coincidence.
More tech info on the TigerCage here:
http://www.ridetech.com/store/tigercage/
I will also say that for the guy who has the talent, ambition, and resources to design and construct a PROPER rollbar/cage for their car...the TigerCage is likely not the most efficient solution. For the person who lacks any of the above...it might be a viable alternative.
Glad to see the interest in this level of info here!