Cats who likes them?

[Treeve]

If you need to pass IM240, you basically need injection and a decent cat.

The LPG thing was from ages ago in an older ADR when there were no allowances stated for LPG so you had free rein for whatever emissions you wanted. there are now listed standards for this, so no loophole.

As to Chook getting his registered on carbies recently in NSW. I've seen the car and it shouldn't have been registered like that.

Treeve

[Jaydee]

Maybe they are open to bribery? But my emission dyno guy says, with a good euro 4 cat you can get the emissions down enough with gas or a carby. The main problem is that every state has different rules. Soon we'll need a passport to get around Australia.
JD

[ICCARS]

Hey JD, do you have any photos of your set up.
You could possibly look at injected gas by parnell or others, as this would be totally efficient and tuning would be optimised if it's injected.
The other thing is that you need to runs the cats as close to the headers as possible, anymore than 300mm+ away from the headers and they do not work properly.
I'm assuming your statement of requirements says you need to meet ADR37.00 for emissions so maybe speak to Tonkin consulting to assist you on this matter and they can help with the lane change testing etc.. to get your car certification up to speed.
Cheers
Wil