Originally posted by techme:
Are you guys gutting the pre-cats while still installed on the car? I really want to do mine but can't imagine moving the EM's from the car and have heard of the dangers of NOT removing the EMs.
I gutted mine while still on the car and had no problems. If you get carried away at the top end near the upper O2s, you can knock things up into the exhaust ports. I just measured about where my 02s were and marked the "rammer". When I got to within an inch and a half or so, I slowed down a bit and took it easy.
You might also consider getting a long drill bit. I have an old one, but I didn't use it because I forgot all about it.  Haven't taken it out in years.
Must be that jumbly-wumbly thing happening again.
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