Alright, so far the update on the findings of the new exhaust shows very promising results! Below 90db,12lbs lighter and more power than the street version. I know this isn't breaking news or anything, but I was just wondering if you guys are willing to go with this set-up for the performance gains over the awkward missing outlet? Will Racing Beat fabricate a new rear bumper to 'fill' the gaping hole? Comments?

 

Cool, I heard that California Exhaust Noise limit is 95 db

http://www.shadetreemechanic.com/df_...newsletter.htm

 

What is your point? The exhaust is below 90db and Racing Beat is in California.

 

I believe he's just stating he's happy the RB unit will be within the limits of the law.
Not all companys ensure products will be street legal.

 

That have never crossed my mind. Racing Beat makes quality products that are sure to comply with all states... At least I have never seen a product that would harm itself by not being legal to use in most areas.

 

Thats part of what makes Racing Beat such a great company.

 

Very weird...

 

^^weird indeed...i think i'll be sticking to the original cat-back that racing beat put out..:D if i was concerned abotu 12 pounds i'd cut off amn arm:p....but for serious road/track racers i guess every lill bit helps...grant teh car weights in at ~3100 lbs. lol so i guess you coudl take out the passenger seat...that' smore than 12 lbs:D

 

i wished they make the original exhaust light wait and that there tips wont turn gold.

 

you know, the one outlet is smart though - its probably a lot more straight through, doesn't have to split in two, so I bet this makes some great power.

dynos ?

 

Guys,
RB's cat back ---I like. Had one for a year. The gold tips people talk about are easily fixed. Just buy some high quality stanless steel(as in kitchenware) cleaner/polisher and use as directed. The tips look brand new.
olddragger

 

Do you have a link to any further info on this?

 

yeah i do that but you have to stay on top of it . kind of annoying

 

No more than what the Racing Beat's homepage have already mentioned.

 

Ahh... missed that when I went there this morning. Just a one line blurb about it. Got it.

Thanks!

I await this unit with open arms and a heavy foot. It sounds like an auto-xers dream. Lighen up the car, and keep the sound within the legal limits at most venues. If it gains HP? Even better... but that's not a 'big' deal for auto-x stock class.

Whoohoo!

--KC

 

Several autocrossers presented the idea of a Race Muffler for the RX-8 to us. They wanted something that was 1) lightweight, 2) met the 92-93 db limit that is imposed on the auto cross course, 3) and made more power.

This really isn't intended as a "street" muffler, although it can certainly be used for that purpose if you want. Eliminating the second outlet, tips, and reducing the system to a single outlet offered substantial weight savings. We fabricated a prototype and ran it on the stock Renesis engine on or dyno and obtained very respectable power gains over the stock and REV8 system.

The sound level increase is certainly noticeable, however it is not objectionable. From inside the car the sound level is increased, most noticeably around 5000-6000 RPM, then the tone moderates at higher RPM. From outside the car, you can definitely hear the RX-8 coming and going, but it has more of a "tuned-V6" note than anything harsh or buzzy. Our initial sound level tests with the db meter proved promising. We intended to test the muffler on the autocross course this coming weekend, but it appears that the weather (and our test driver) may require that we push it back a week.

Since this intended primarily as a race unit, we do not intend to offer any type of “cover” for the second muffler tip opening. If you want the ultimate no-frills performance exhaust for your RX-8, this will be definitely worth considering. If the testing goes as planned, we are looking at further reducing the weight of this unit as we continue the development of this project.

Let me know if you have any further questions, however I can’t give out any “numbers” unit we get deeper into the project.

Jim Langer
Racing Beat

 

jim how about a custom job ,can we order one and you guys add a 2 tip

 

The intent of this system is for race applications, the design of the canister will not permit the addition of another outlet tip.

Maybe you can do what Mazda is offering on the Mazdaspeed 6, you can mount a "fake" tip in the bumper to give that appearnace that something is really there! (Actually, they have placed a large shiny tip end in the bumper, with the smaller "real" tip placed in the middle of this tip opening.)

JL

 

Only problem is there won't be any fumes coming out of it(especially when cold) and one side will stay clean. It's too obvious but good suggestion.

 

ok i i have your original one but i would love to get this one as its light weight no pictures of it yet. is it possible to put pictures up.



by the way i ordered your intake 2 days ago they told me 1 to 2 weeks and you would have it in.hows that going ??? PRIVATE MESSAGE ME AS I DONT WANT THE RX8CLUB KNOWING ILL BE THE FIRST TO GET IT :D

 

any pictures?! :D any special deals to people who want to trade in their rev8s for the new exhaust?

 

I got one for you, sell your rev8 to me ... i want one bad

 

Bronzed tips means you drove the s**t out of it. It is a badge of honor :D My tips turned bronze after a track day.

 

Remember, the idea of this exhaust is more "function" than "appearance". It is hard to make a direct comparison between this race exhaust and a "street" system because it will be much louder, and will be missing a tip. Some of the more hardcore RX-8 owners might consider running this on their car full-time, but I personally find the sound of the REV8 exhaust much more pleasing for daily driving.

Jim L
RB

 

Jim when will your headers be coming out along with your high flow cat. ????