I was reading a japanese magazine and saw many types of HF cats:

Apexi Super Catalyzer
HKS cat
SARD Sports Catalyzer
Jspeed cat

Do you know something about them?

 

I have heard they are just as free flowing as a strait open pipe but cost $$$$. It would be nice to get them here with carb certification on them. I have th helix Its okay. I get insufficient cat cel once in a while, I just have to reset it.

 

Yeah, I heard about these as well that Japanese Tuners don't run test pipes, but these high end high flow cats as well.

I would like to hear more about these as well....

 

Supposedly, the emissions produced using these cats should be at lower levels than the oem units on our cars. Thats amayzing.

 

the hks cat might already be available here in the states. i called hks-usa about it and they said it didnt even have a part number yet.

 

Almost all of the time attack cars in Japan run these cats. They are available in roughly 3" and 4" sizes. Some of the nicest on the market are SARD and Apexi which can run from $600 to $1000. I might be talking out my a@@ but I think the Cyber Evo runs the SARD. Bring your pocket book.

 

Random Technologies makes a cat that in my opinion flows just as well i aonly saw a peak 2 hp loss compared to the test pipe but thropugh the midrange it was dead even.

 

I looked into this a while ago. Its out in the Japan HKS website...
http://www.hks-power.co.jp/ but its close to $1000 I like my RRE cat!

 

Dont forget that these japaniese cats are made from some type of material that comes from space! They are in a whole nother league. Not only do they flow VERY well, they also run SUPER clean.

 

I'm sure they are....lol

 

NoTecYou need to read this.http://www.randomtechnology.com/technical.html

 

The cats used by Japanese tuners are in some cases made using Platinum.

 

f*ck that I would rather spend $50 on a test pipe than $1000 on a hf

 

personally I don't give a f*ck it they are made out of gold that is a waste of money $1000 for a high flow cat not worth it just run a test pipe and when u go for your smog check take it to a tight shop who will fake the funk or put back on your stock cat

 

Read.... the article several previous metals are used to "wash" the substrate material with, platinum, rhodium etc..