[Moppie]

Well just remember that your are sitting on the opposite side of the car to the engine and g/box in a LHD car.
And that before it enters the car any parts have to travel through the bell housing, and then through the firewall. Which is not a thin piece of metal. (well it is, but its thicker than a transmission tunnel on most RWD cars.)

I personally wouldnt worry about unless you were running LOTs of hp.
It takes more than you would think to brake something bad enough that parts have enough velocity to break into the car and do you damage.
Were talking 400+hp.



But, if your that saftey conciesious (and theres nothing wrong with being safe when involved with motorsport) then I doubt you will find any one who makes one. Quite simply very few Hondas will ever make enough power to justify it.
Your best bet would be a light enginering shop.
Or even make one on your own, all you need is some light steel plate.
Either mount it off the fire wall, or off the g/box useing the g/box securing bolts.

Or otherwise approach someone like JG engine dynamics who have built very high hp cars.