is there a lenth where you should place a cat conveter ?? I have all ways done my own thing , just asking all who may know :party

this a lenth from a Y piece if its a flat donk

[Edited on 15-10-2004 by seagull]

as close as possible to the engine/exhaust ports - they like heat

ok cheers :beer

yeah, that's right. You should mount it as close as possible to the engine, so straight after your merge.

Catalytic convertors don't actually start working until they've reached the correct operating temperature (which is freakin hot). So the closer to the engine, the quicker it will get up to temp.

When the cat is cold the exhaust gases are much more harmful than when it's hot and operating properly. I've also heard cat's are useless after 1-2 yrs of use anyway. Don't know how true that is, or if it's just a conspiracy theory...

I will be running my EJ25 on LPG. Is it still advisable to use a CAT?

well the fine is $2500.00 with out one !

I post some photos of mine on sunday , looks very nice :bounce

$2500 :o :o :o

the guy at the cat converter shop told me so

I've been advised to have the cat placed at the original distance from the engine on the exhaust so as to meet the original emissions when built.