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Catco Metal Cat Or A Metalcat Converter!?

steveo_r33

By steveo_r33,
in Engines & Forced Induction

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steveo_r33 Proficient

steveo_r33

Posted
Posted

Hi guys,

I have split front s steel dump / front pipe running into my 4" HKS Hi Power Exhaust into a standard catco cat converter.

I can get the CATCO Metal Cat 4" Catalyic Converters at a reduced price from a friend and they claim to flow at 1054 CFM

or I can buy a METALCAT 3.5 Inch Cat Converter and have to run 1/2 inch reducers to make it fit. (they dont make 4")

I think going down in size is stupid and i should go with the catco even if their CFM claims may be a bit overrated.

I need some advice guys.

Thanks

saliya Rising Star

saliya

Posted
Posted
Hi guys,

I have split front s steel dump / front pipe running into my 4" HKS Hi Power Exhaust into a standard catco cat converter.

I can get the CATCO Metal Cat 4" Catalyic Converters at a reduced price from a friend and they claim to flow at 1054 CFM

or I can buy a METALCAT 3.5 Inch Cat Converter and have to run 1/2 inch reducers to make it fit. (they dont make 4")

I think going down in size is stupid and i should go with the catco even if their CFM claims may be a bit overrated.

I need some advice guys.

Thanks

Hey,

I don't know that the claims are overrated; if the cat is the one I'm thinking of the actual area of

flow through the cat material is more like 6". Does it look like this:

post-14974-1175308385.jpg

You might be able to cut the ends off the metalcat cat to get a true 4" cross-section; I don't know.

Regards,

Saliya

steveo_r33 Proficient

steveo_r33

Posted
  • Author
Posted

hey mate .. I am not actually sure what a 4" catco metal cat looks like... but i can get them cheaper...

if thats what they look like lol f**k yeah thats huge.

anyone on here use the catco's???

BHDave Grand Master

BHDave

Posted
Posted

I do. But as said earlier, all of the metal substrate cats are much the same

The size is the diameter of the center section, not the inlet and outlet size, so a 4 inch is 4 inch center section, it could still have 2.5 inlets. they are available in a variety of inlet sizes and centre diameters when not flanged. Bolt on ones are usually 3 inch in/out to suit the stock flanges.

rb26s13 Mentor

rb26s13

Posted
Posted (edited)

4inch in/out metal cat with 5inch body

Wazfone139.jpg

also if you got the 3.5 i cant see it making any restriction as you said your runing a split dump/front.. so you've obviously got a largish low mount.. 3inch flows plenty unless your making more than 450-500hp at the treads.. i cant see the smaller one being any restriction

Edited by rb26s13
steveo_r33 Proficient

steveo_r33

Posted
  • Author
Posted
4inch in/out metal cat with 5inch body

Wazfone139.jpg

also if you got the 3.5 i cant see it making any restriction as you said your runing a split dump/front.. so you've obviously got a largish low mount.. 3inch flows plenty unless your making more than 450-500hp at the treads.. i cant see the smaller one being any restriction

what sort of cat is that? looks the part!

If i get a 4inch in / outlet cat converter I wont need to take it to a muffler shop to have it fitted because I wont need to mess around with inlet / out sizes, just gaskets and maniseal!!!

Plus a 4 inch in / outlet cat is bloody huge..

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