JeepinMaxx
Active member
Well - after 16 years - the stock Cat finally died. During the mud/water crossing at a recent trail ride the submerged backpressure of the tailpipe blew out the old rusted Cat. So I'm in the market for a new converter and tailpipe. I'm not sure I want a 'performance' cat back since I'll probably wreck it on the trail anyway. I have a '90YJ which originally had a 4.2 with a carb. That = a 'pulse air' emmissions set-up which had a tube from the cat to the aircleaner.
I currently run a 4.0L out of a 92 with none of that emmisions junk. Does the '91+ YJ's have the same cat without the pulse air tube? The one with a 4 bolt square flange inlet and 2-1/4" outlet?
I run a stainless Borla header and down-tube that mates with that 4-bolt flange.
Just figure if I go with a '91+ cat - I wouldn't have to worry about sealing off the air tube that the '90 cat.
Thanks for your help!
I currently run a 4.0L out of a 92 with none of that emmisions junk. Does the '91+ YJ's have the same cat without the pulse air tube? The one with a 4 bolt square flange inlet and 2-1/4" outlet?
I run a stainless Borla header and down-tube that mates with that 4-bolt flange.
Just figure if I go with a '91+ cat - I wouldn't have to worry about sealing off the air tube that the '90 cat.
Thanks for your help!
