I just received my Bonez Supercat in the mail today from RP, and confirmed the rumor that they have changed the style of the cat unit... it's now smaller and has a heat shield on it, but still no hanger though. I'll be installing it on saturday and I'll report back on sound, performance, etc.

Pics are below...

 

I forgot to add... this new unit weighed in at 11lbs on my fairly accurate digital scale... it's amazingly light.

 

i was told by them way back when that the old one was a bonez design... so what gives?

is it still a metallic cat?

 

Yeah... the older one is a Bonez as well... just a different design. And yes, the elements are still metallic.

 

I'm looking forward to hearing it.

 

Ah still no hanger? Why not??

 

I wish they would add an O2 bung ahead of the cat also.

 

I think you will like it. Wonder how the flow is compared to the old design!

 

I have some extra stainless hangers, both in OE-style or a lower cost hook-style

they're a bit pricey, but I recommend the flanged O2 sensor port from Burns Stainless if you want to add one for an O2 meter, just drill the hole slap it on and weld the flange, much easier cleaner and smoother than the usual inserted type

http://burnsstainless.com/Hardware/T...2 Sensor Rings

 

that piece looks great, be sure to give us your review as soon as you install it.

 

do you have the temperature range for the catalyst

how many cells ???

 

Great to see the new design, too bad about the lack of a hanger but I guess it's not a big deal to tack one on.

Can't wait to hear a report on the sound.

So to sum up the cat options:
RP has a Bonze cat
RX7Store has a magnaflow cat
Any one know what the brand SR cat uses??

 

I went with the RP because it's a Bonez- they make them for the RX7 so I know it will handle the rotary's heat. I also have yet to hear of one failing, while I've heard of at least two of the SR cat's failing as well as the one that CZ sells.

I'll record some audio/video clips this weekend for y'all...

 

its not needed

 

^^^
Do you have the RP cat and not need it on yours?

 

yes and yes

 

What cat back system do you have?

I was of that opinion at the time that I may have also needed a hanger because of the weight of the OEM cat back. Now that I have the tanabe I question if it's necessary with the weight reduction.

 

Which tanabe exhaust do you have? And how much does it weigh Red Devil?

 

Those welds look nice.

 

OEM

 

Really weird that mine always slapped the undercarriage brace and yours doesn't. That's why I had to get a hanger...go figure...

I have the Super Hyper Medallion Exhaust...I don't have the specific weight, but from holding both I'd guess it's ~10-12lbs lighter.

 

^^^
i have the RP cat, and didn't need a hanger. Its sitting very sturdy, and has been in for almost a year now.

 

same here

 

must be some manufacturing differences somewhere... mine is not even remotely close to hitting anything

 

you have a bracket mount at the manifold up where the engine tranny mate together, a mount at the rear diff, and a non-rigid ball seat connection between the two points where the midpipe and exhaust mate together. If you don't think the pipes are flexing about that ball seat connection and fatigue cycling some part of the system you're mistaken.

We're only talking about hanger that adds almost no weight and on a $300 - $400 retail part might add another $10 to supply and install. I'm sorry, that's just dumb. I wouldn't even do that on a lightweight max race system.