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[VXL V6]

Is it legal to remove the CAT?

I would imagine so, as long as the car meets the emmission requirements without it. Many car owners do it.   

It's just a smog test on a diesel.
 

[Omegatoy]

Is it legal to remove the CAT?

I would imagine so, as long as the car meets the emmission requirements without it. Many car owners do it.   

It's just a smog test on a diesel.
 

true!!! also its not a cat as we know it from petrol burners, its a very very basic cat, its more of a burner than a cat

[hoofing it]

Has anyone tried, or is it possible, to take off the cat section of exhaust and try knocking out the inside of the CAT material (ie flexi ram rod, and bashing the outer case) until as much comes out as possible and then re-fitting ??
I believe the CAT inner material is quite fragile, so this might bepossible.

DON'T ever do this to a cat this is highly toxic and dangerous it's not just platinum and gold thats used its what the core is made off is a asbestos like material

[aaronjb]

DON'T ever do this to a cat this is highly toxic and dangerous it's not just platinum and gold thats used its what the core is made off is a asbestos like material

Ceramic, last time I checked, which turns into a very very fine dust which, you're right, can easily cause the same symptoms as asbestos (silicosis) if you breath it in over a reasonable period..

Having said that I've done precisely that plenty of times on MR2 Roadsters (they have preCATs right next to the exhaust ports that have a habit of breaking up 'naturally' and getting sucked back into the engine via the EGR system, nicely mullering the bores) and so far I haven't died (yet) Just be sensible and don't take great lungfuls of the stuff in, do it in a well ventilated area and, if you have one handy, wear a mask (at least a paper gauze type).