</font><blockquote><font size="1" face="Verdana, Arial">quote:</font><hr /><font size="2" face="Verdana, Arial">Originally posted by KG4PAM:
<strong> i was wondering if i hollowed it out if it would hurt on my sniffer test. thanks!</strong></font><hr /></blockquote><font size="2" face="Verdana, Arial">Hell yeah! The cat heats up to burn off most of the remaining pollutants from the exhaust. On a EGR-equipped vehicle, what doesn't get re-burned passes out to the cat and if the cat is operating properly, will pass much cleaner emissions out the pipe.
Will you get better performance without it? Of course, but all that means is that it's one link in the emissions system; you have to pretty much take them all out to make your ride sano.
Just my opinions here, but I say unless you got yourself a race engine, the stock emissions system should stay intact for reasons of predictabilty.
Ol' Boggy Bottom
'83 & '84CJs, '51, '53, and '57 Willys Pickups