Can anyone post or refer to the thread about the flow rates of these cats?
thanks

 

It doesn't have the flow rate of the 2.5" carsound, but it has all the rest...

Hope this helps

I think this is what you were looking for.
1) Catco (metal core) 2.25" 223.8 cfm
2) Catco (metal core) 2.5" 271.9 cfm
3) Catco (std. core) 2.25" 338.2 cfm
4) Catco (std. core) 2.5" 388.0 cfm
5) Random Tech 2.25" 297.1 cfm
6) Car Sound 2.25" 342.7 cfm
7) Test Pipe 2.25" 407.1 cfm
8) Stock NSX 242.1 cfm
9) Stock Type R 223.6 cfm
10) Stock Integra 218.3 cfm

This test I believe was conducted by CompTech. I don't know which series of Carsound cat the above 2-1/4" was, 54006 or 94006. It was too bad that they didn't test the 2-1/2" cats from CarSound. I recently received an email from Carsound which gave their flow rate for the 94006 at 14" of vacuum. The above tests by Comptech were reported to be conducted at 28". Carsound estimated the 94006 would flow around 400 CFM at 28".

Endyn also perform a flow test on the Carsound, Catco and Random Technologies a while back ( I don't believe that it was posted though) and they told me that the 94000 series was the best. One other thing to consider in the design of the cat is how smooth vs abrutly the shell transitions to the inlet and outlets.

Jason

 

Carsound told me 400 cfm for the 94006 at 28 inches of vacuum.