I have new info about the cat:

A HJS Motorsport Cat has a rated temperature up to 1000° Celsius, so that is 1832°F.

The price has dropped also....

 

According to their website, http://www.hjs-motorsport.com/bezugsquellen.php, it looks like Billy Boat is a distributor for their products. www.bbexhaust.com makes no mention of this.

 

That dosent surprise me. BB lacks on updating thier page with up to date info.
Plus he's an ***.

 

You can buy them here: http://www.nimex-motorsport.de/ for around 500 euro now

 

thats $675 fyi

 

and worth every penny ...

 

I have only logged up to 1702F on the dyno with my current cat. Anybody log higher? Does the distance, when locating this cat from the exhaust manifold/header exit flange to the cat's entrance flange (welded to the cat with minimal distance), effect the ability of the CAT to properly lite off? Or, does the location still need to be as close as possible?

 

I'd give my left nut to know what the stock cat is rated at.

 

ive seen it posted here somewhere, GL finding it though...

 

I did find this from swoope at some point and it's consistent with what I see with my AFRs in the low 12s

https://www.rx8club.com/showpost.php...30&postcount=9

 

i've routinely seen temps of 1750 on my stock cat.. and that was before my AFRs were leaned out.

 

We actually contacted them to use that Cat in another Mid Pipe design....I couldn't justify the expense to produce and sell. He gave me a very impressive price if I bought 10 of them.

Too many projects going on for us lately....one day

 

Doing any one off custom work?

 

Of course, always.

Thats how Tubingchamps CF Diffuser came about

 

So the Hjs is one of the best about the rx8? I also leave in europe and i could easily buy one!!! is it a good ideal to weld on a mid pipe ? for example RB mid pipe?

 

No they are not.

 

Vielen Dank für Ihre Nachricht

LOL

 

I just received my HJS cat from nimex motorsport. It is the one teamRX8 used .
here's a couple pics of it

 

Congrats!

 

I'm curious to see how well that cat holds up with your turbo Psycho.

 

mine is on a turbo now ...

 

where is a better location to put this cat on?
the front half of the midpipe or the second half after the bent?

 

OE location, which may require modding the pipe some

 

update bump

 

I had the cat put on about two weeks ago.
Performance wise, i don't see a noticeable changed compared to the RP surpercat that i had. It could be due to the HKS legamax catback being the bottle neck.
Exhaust noise is about the same and there's no more bad smell.
The cat is hanging a little low to the ground. I would suggest getting the 2/1012/10PE cat. it is smaller in body diameter.