Got my all metal cat from DaveSport. This is a universal with no ends. Looking forward to getting it put in my midpipe. The stats:
Inlet/Outlet: 3.25 inches
Length Overall: 4.5 inches
Length Catalyst: ~3.5 Inches
Diameter: ~4.3 inches (calc from 13 9/16 inch circumference)
Case Metal Guage: 0.0625 inches (304 Stainless)
Weight: 948g (2 Lb 1.4oz)
Cells Per Square Inch: ~256 (random orientation inch average squared, 16 squared)

Nice and easy trasaction with Dave. Quick shipping $138 plus $9 s&h

Now some pictures, hopefully...

 

 

You cannot use a webpage (.html extension) as an image.

EDIT:
Now that the above links are fixed, these mages have been removed for you're viewing pleasure

 

Thanks. After I hit submit I noticed the .html doh!

 

Hope this keeps working...

 

Is there a hole/fitting for air injection, or is it just the tube with the catalyst matrix?

 

thats neat.. so you just stuff it into the midpipe?

 

Sure, if you count cutting a section of midpipe out and welding the hi-flow cat section in as "stuffing it into".

 

yup, thats what i meant

 

Looks like a severe restriction. Will this type last with the rotorys heat?

 

You should take a look at OE ceramic cats, if you think this is restrictive...

 

I can't wait to hear more. Keep us updated. I looked into getting this as well. Do you plan to try and use the airpump with it?

Greg

 

This is just the catalyst. I am going to have the muffler shop weld it in and add an air line for the air pump. I would rather err on the safe side and run it with the air pump. I hope this hold up to the rotary's heat. In theory it should.

 

The only thing tha stinks is that it's stated as being 304 stainless. I hope the innards are 321 as it might not hold up to well to the heat otherwise. But I'm still interested to see how it works. It's not a bad price so experimenting isn't a huge deal.