Have made a bullbar or two for my cars. Would they comply to every reg?.....Maybe, but probably not.
Would i attempt a front bar for a car with SRS? Noooo
If you wanna play around with important bits that may seriously effect your cars ability drive in a straight line, go around corners and stop...and keep the diifs from falling out.....fine, but at least get it approved. If they wont approve it, they may just be a good reason for that.
I understand that some mods get done by some more than capable people that never get signed off. Dosn't necessilary make them unsafe, but may cause someone dramas later if the unthinkable happens.
Then there are some that would be better off left to a life of a trailer sailor or bush truck......
My old boss had a C30 dual cab chev, low as you could get it....on airbags. Rear chassis was chopped above diff and raised a bit......moved straight up with a couple of bits of flat bar, no bracing what so ever. Rear airbags were on rocker arms due to lack of space, rockers were a piece of 2" SHS with a 1/2" hole drilled in the middle for a pivot bolt...no bush welded in, no crush tube or the like, not even a flat washer. Front wheels rubbed on the top of the inner guards, had car low profile tyres with a load rating no where near the weight of the chev unloaded.
This was all done in the USA, and went through engineering here in this state after they done the RHD conversion. Not really sure how.....
Rear rockers and tyres lasted a few 1000 km at best.
While he was in the US buying this prime piece of automotive misery, he got pix of a 32(??) Ford at a car show. Blown BBC, beam front axle, rack and pinion steering bolted to beam axle, socket extension type uni joints connecting rack to steering coloum . Aparently wasn't an uncommon way to do it over there 
Missile mods?....Bunnings down the road, see plenty drive outta there
'93 D1 V8 auto
'93 D1 200Tdi 2-door, ARB's, MD transfer, sill tanks, winch, 2"lift.......
'95 D1 V8 auto......gone
'86 V8 RRC.....gone
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