I built my Indy with a catalyst just because thereīs a enviroment fee here in sweden at Ģ500 if you donīt.
Thatīs no problem for me though, I try to be good to mother nature.

But it took some time to find a decent catalyst, that not gonna make the look of my car ugly.
So this is what I found for Ģ150
Its only 90mm long and 63mm in diameter

very neat!

atb

steve

How well does it flow?

I have another pic of the inside

Blackthorn Autocats are quite good.

http://www.autocats.com/

[Edited on 2/11/04 by atomic]

Here is a flow test: http://www.katalysatorteknik.com/diagram.htm

Unfortunaltely it's in swedish but the test is on a Saab 9-5 2,3 liter turbo with a boost at 1,4 bar.

The text under the table is from left to right:
Without cat, Race cat, sport cat, standard cat

EDIT: Found a better link

[Edited on 12/10/04 by Friberg]