I just ordered some parts from SR Motorsports today. I was looking around for a Hi-Flow Cat unit and I was debating between the SR Motorsports & Can Zoomer unit. I was leaning towards the CZ unit at first because it included a resonator to cut back on sound. I already have the Racing Beat cat back and I didn't want it to be too loud. But in looking on the SR Motorsports website they now have an option to add a resonator onto their unit for an extra $59. I ordered it today along with the pullies & also I bought a SR Motorsports aluminum flywheel this past weekend. Also, I was hearing the CZ is backordered. Should be fun. I will let everyone know how it goes.

Why are people buying the SR motorsports flywheel for $586 when you can get the Racingbeat for $455? They are virtually the same flywheel. Just wondering.

Jason

A lot of people, including myself, have the SR Motorsports fly so there are a lot of threads with happy customers. There is only one thread about the Racing Beat fly so it is not as "seasoned" as the SR one is....

Please let us know how it works out.

I have the same exhaust as you and am considering the same option.

Others want feedback too on :

Performance
Noise at cruise
noise on acceleration

Soo...now it has two resonators? I wonder how much more of a restriction you're adding with another resonator.

Enough to drop his performance gain from 10 to 13 (this includes RB CAT) to 7 to 8.

Soo...now it has two resonators? I wonder how much more of a restriction you're adding with another resonator.

No it has only one on there, unless you are considering the hi-flow cat a resonator. The original piece has the hi-flow cat, and behind it is a tube (with one bend) that goes to the cat back exhaust with no resonator (hi-flow cat & piping). This new piece has the hi-flow cat up front, but after the hi-flow cat, a small length of tubing, then the resonator on the opposite end of the hi-flow cat (right before it connects to the cat back system)(hi-flow cat, tubing, & resonator).

Jason, I got a really good deal on the SR Motorsports Aluminum Flywheel. Otherwise (as you can see from my mods) I probably would have gotten a Racing Beat product. Both companies seem to have very good reputations from the RX8 community.

Enough to drop his performance gain from 10 to 13 (this includes RB CAT) to 7 to 8.

Racing Beat got 8 hp from putting a replacement/midpipe on, and only about 4 from taking out the mufflers completely (about 10 total, remember hp gains are not cumulative). If I got 5 or 6 from the cat, and 2 or 3 from my cat-back I would be a very happy camper.

Just got the SR Motorsports hi-flow cat (with resonator) & SR Motorsports pully kit today. Look very nice. You can tell the craftsmanship on these pieces is very high. The welds are solid, and well done, the pullies are smooth with no "extra" mold pieces that i have seen on some units.

It's almost been a week, any updates? We are drooling once again...

Hi Nemesis,

Good to hear from you. Was that Racing Beat event great or what ? I still have the unit in my closet. I was thinking about waiting until the RB air intake came out, then installing all the parts at once (adding the SR Motorsports pullies, SR Motorsports hi-flow cat, SR Motorsports flywheel & RB intake) so I can do a before & after dyno. Although I am getting antsy.

I think most of us would rather see you dyno each item separately along the way or one after the other cumulatively to see which mod gives the most benefit and if any of the group have multiplicative gains when used together (EG: intake and exhaust together as opposed to separately). Just my opinion. I know dyno time ain't cheap.

That's a little bit expensive to propose don't you think?

I say do them all at once - that's the package I am working for, so a complete dyno would be nice and allot less expensive.

Maybe the RX8club needs a project car of it's own??

I think most of us would rather see you dyno each item separately along the way or one after the other cumulatively to see which mod gives the most benefit and if any of the group have multiplicative gains when used together (EG: intake and exhaust together as opposed to separately). Just my opinion. I know dyno time ain't cheap.

Unfortunately at $150/hr for the dyno time, not to mention my mechanic charging by the hour it is really not economically feasible for me to do multiple dyno runs.

WHAT!?...for just $40 i can get 3 Dyno pulls with power/torque print out and air/fuel...i mean your not going to be doing any "tuning" off the dyno since you don't have any reason to..so why is it so much..or is just that much out in cali?

regardless...i am waiting for your results on the SR midpipe with hiflow and resonator with RB exhaust...that's exactly what i'm contemplating on doing...