Heads up!!!.. I have a 2002 pro 5 and the top catylitic converter failed on me, took it to the dealer and they replaced it for free!!something about a recall..anybody heard about this?..let me know.

 

Emmisions equipment is warranted to 100K miles (IIRC). The Gummint makes 'em!

 

Say NO to cats.

 

It's actually 80,000 miles. But close.

 

^You are probably correct - I would check the warranty info in the owners manual 'just to be sure'.

 

my cat seemed to have disappeared...

 

Yeah, mine did on my RX-7 too. Weird.

 

Mine is still there.

Scaredy-cat (gutless)

 

Does it make any noticable difference in power if you get rid of the pre-cat, and will that cause a CEL?

 

Yes and yes.
People have had successs with the MIL eliminator (wire a resistor and a capacitor to the O2 sensor wire). It does generate a CEL after thousands of miles sometimes ('no change in in O2 sensor reading') but one could just clear the code using a reader or AutoZone or disco the battery...

The other more permanent fix is to get a 'tee' for the O2 sensors. Search for more info.

 

i got rid of it. i have a cel but is cause of a O2 sensor damaged. had it before taking off the Cat.