Quote:
get the cat off a VN commodore. 2.5 inch inside dia. good flow. cheap if you can get one at wreckers.

You can always pickup brand new Hi-Flow Cats for around $200 on ebay. If your running on unleaded you really should have one to take out all the nasty's regardless of the year your car was manufactured. I bought mine awhile ago, but have yet to have my exhaust done.
Would love to see a picture of yours once it's on. Good luck

In the US if its a non cat car you dont.. They have a sticker under the hood or on the driver door stating cat or non cat. Dont know if this helps you folks or not. I know your engneer things are far different than ours from what Ive read good luck. A cat in the U S know more than 300.00 for a basic setup.

$600! Is it gold plated? Keep looking. . .

i wasnt so much worried bout the power los but the 600 odd dollars to get one fitted, it seems like im gunna have to bite the bullet though, thanx for replys

p.s. got my R31 diff in YAY, exhaust and tailshaft this week and next week

Emissions ADRs

ADR 27A for non-catalyzed vehicles
ADR 37 for catalyzed vehicles (early eighties).

If you've ever seen the with/without comparisons in emissions for cat convertors, you wouldn't be whinging about having one.

It cuts emissions by 90% with such little power loss. It's amazing!

It depends on the engineer..but it's the FIRST thing that a cop looks for. So having one is VERY cheap insurance against defects.

Most modifications should make effort to reduce emissions, that's a good reason to do a transplant. A much better excuse than needing a CA powered Ute to do burnouts in a McDonalds carpark...

Cheers,
Chris

Talk to an engineer. I have been told that I don't need to run one as the 1200 ute is classified as a commercial vehicle.

pretty sure you have to as the engine is not pre 1975.
Mat

what is the deal with catalytic converters, i was under the impression that because my ute is pre 1975 i didnt need one, ive bin told by the exhaust bloke that i have to coz its an unleaded engine, is he pullin my leg to get more cash or is this true, any helpfull feedback much appreciated