Alright guys just a quick question. I'm planning to purchase a new exhaust after receiving my stage 1. I've looked at them all and they all sound great but which one do you think would work best with CZ's stage 1. I'm leaning towards the B&B. Woud the sound get any louder with the mod? Are there any exhausts that I should stay away from after adding stage 1 i.e (heat factor?). Finally from personal experience which exhaust is the loudest because I do take long drives and don't want to be drowned out too much.
Thanks in advance!

Take the word from Canzoomer himself. He made cursory recommendations for the Borla and Greddy and has stated he has "sensed" additional power on the Borla combined with his Stage 1 on another test car. These statements were regarding additional power. Now, if you are only into looks and sound then I have no information to offer.

Ofcourse not I'm looking for more power as well but I'm trying to figure what would be the best exhaust in this situation. Plus after this mod the only other performance mod I would do is maybe an intake. But I say this for now;)

Save your money on the intake and get another mod,maybe stage 2, Maurice already stated that and aftermarket intake would not add anything!

You cant really get a serious recomendation about this until people actually have units and try it out. You either have to wait a bit, or just take the plunge and hope for the best. Nobody can tell you what will work best out of 10 models with a product that hasnt arrived into peoples hands yet.

Sorry bro, simple fact.

Yeah I figured as much, I'll just have to take the plunge and take a chance. Then so far it will look like a CZ stage 1 and B&B exhaust. Plus I cant really tell which of the exhausts is the loudest or softest because the sound clips are more for sound and not volume. So I'll have to go with performance. Any other opinions or insight?

Also I thought if I went to CZ stage 2 the car would then be not street legal which I do not want to do. Please correct me if I'm wrong.

Thanks again

Stage 2 is not "street legal". Technically, Stage 1 isn't either, but it shouldn't fail an emmisions test.

We may get Doc's car dyno'ed soon, to see if there are measurable benefits with the Borla system.

I think, because of your sig. you should get the titanium system. After all, it's not my money ;) .

I don't think he said that...he said he didn't foresee significant gains from adding an intake. This is not based on testing, unless I missed a thread. Reputable companies have posted dyno gains from their intakes, but unfortunately I haven't seen any corroborating evidence (or any other kind for that matter) from owners yet, so we really don't know.

jds

Originally posted by JimW
Save your money on the intake and get another mod,maybe stage 2, Maurice already stated that and aftermarket intake would not add anything!

I plan on purchasing an exhaust system as well after I recieve my Stage 1 kit from maurice. I have looked into many that are available but I think I will wait until Racing Beat comes out with thiers. I have written to Racing Beat but I have not received a response to my email. I asked when the system would be available.

LINK:http://www.racingbeat.com/FRmazda4.htm

I too am in line for a Stage 1 and am also considering the racing beat, however, they better hurry up, because the JIC systems are looking pretty nice

There are just so many great exhausts out there. I just don't know which one to pick. Truly I want an exhuast that gives great HP gains that doesn't sound too annoying. Basically a good all around exhaust.

I'm becoming more and more impatient each week, waiting for the racing beat exhaust to come out.

Originally posted by TitaniumRX8MD
There are just so many great exhausts out there. I just don't know which one to pick. Truly I want an exhuast that gives great HP gains that doesn't sound too annoying. Basically a good all around exhaust.

BORLA

Great Sound
Great Price
Great Looks
Great Warranty
Solid Engineering and Support
Power gains equal to the others

Other than going Titanium for low weight -- I doubt there will be much difference between all of these exhausts performance wise. The sound differences are subjective at best -- I have only heard my Borla and stock and the Borla sounds great. So basically it comes down to cost and warranty. Borla is low cost (~$500) and has the best warranty (million mile).

I can say good things sound-wise on the Greddy SP2. I like the big tips on it and the sound is awesome. Cant say about power as I havent had time to dyno it yet, but should get that done next weekend.

I've personally heard Genom's Greddy exhaust and it sounds quiet at idle and AWESOME when reved! The big tips fill up the exhaust outlets and look great.

You guys need to understand that the HP gains are going to be similar with every exhaust mentioned. If one claims 2 HP more than another its something you are never going to feel on the street. I would go by what looks and sounds the best and one that is priced right.
If you want HP gains you are going to feel then get a midpipe.

Jason

That's totally true and I see your point, if that's the case Jason, how do you compare your RX8 exhaust to the Borla, since they are both around the same price and supposedly yield about the same HP.

There's also weight to consider.

That's true too but most of all the after market exhausts are considerably lighter than the stock

Ours and the borla are both nice. The only thing I dont like about the Borla is it has one to many bends in the piping. Other than that its nice.

Jason

Jason explained it to me the same way, TiRX8MD.

The more bends in the pipe the lesser the amount of free flow. Probably not enough to notice on the ol' butt dyno but true none the less. If you notice, most of the exhausts that are out there for this car are shaped like a 'T' with dual mufflers. Again, all the exhausts that are out there are quite similar and unless you hear one in person it is a crap shoot. Price and sound motivated me on the RX8Store exhaust. Check out my write-up as well as the sound clip that we made and simply judge for yourself. I also have a thread (My Lightning Yellow with all the goodies) of my own which shows more pics of the exhaust on the car.

It is a nerve racking decision (as are all purchases when there is this kind of money involved) and I believe that which ever exhaust you go with, you will be happy. My CZ Stage 1, according to my e-mail from FedEx, should arrive sometime around Jan. 28.

I will post my results at that point ASAP. Best of Luck with your decision.

Here are some pics if that helps

.

Thanks dude, for the pics now I'm swayed toward the RX8 exhaust, before was the B&B..... Decisions Decisions Damn

Originally posted by bureau13
I don't think he said that...he said he didn't foresee significant gains from adding an intake. This is not based on testing, unless I missed a thread. Reputable companies have posted dyno gains from their intakes, but unfortunately I haven't seen any corroborating evidence (or any other kind for that matter) from owners yet, so we really don't know.

jds Exactly! This is why I recommended he spend his money on a worthwhile mod, not that I'm against intakes, hey if people like them and it makes them happy, that's great! now I'm seeing dyno charts with some H.P. gain, so It's not a useless mod, like I misquoted, but for the money you would spend on the intake, you would be able to buy the difference between stage 1 and 2, which would give you a lot more power.

Just a quick question, if i get the stage 1 first and then decide to add intake, exhaust, etc.. would i need to reprogram the stage 1 or just let it be?

Guys I've heard from some people that Canzoomers stage 1 mod doesn't work well with Intake and exhaust mods but I also heard this

Quote: "adding an intake with the stock fuel maps may not be a good idea because the ECU will just add even more fuel at the higher revs and make the air/fuel ratio worse.

He then made a comment stating that any mod that increases air flow (i.e. intake, exhaust, headers, etc...) should work with better with the tuned fuel maps."

Is this with the stock ecu or canzoomers stage 1 mod? If with this is the Stage 1 does this happen with the stock ECU as well? What are they talking about when they say tuned fuel maps? And how do you tune the stock fuel maps?

Originally posted by RX-8 friend
Stage 2 is not "street legal". Technically, Stage 1 isn't either, but it shouldn't fail an emmisions test.

What about Stage 1 makes it technically street illegal?

The only thing theoretically that Stage 1 would effect is the longevity of the catalytic converter.

Ah, yes, EPA illegal. That's the manufacturer's concern. I thought Friend was saying illegal, as in something WE could be held responsible for, and I was racking my brain trying to figure out what. Thanks, bro.

Originally posted by bureau13
I don't think he said that...he said he didn't foresee significant gains from adding an intake. This is not based on testing, unless I missed a thread. Reputable companies have posted dyno gains from their intakes, but unfortunately I haven't seen any corroborating evidence (or any other kind for that matter) from owners yet, so we really don't know.

jds
Correct.

I have NOT tested intakes.
All i said was that I think the stock Mazda intake is quite good, and i feel that little is to be gained there.

I think that exhaust on a car that is absolutely stock gains little, but that this is due to the poor state of tune in the car in stock condition.
I DO know that ones with the Stage1 installed seem to be quit strong with aftermarket cat-backs, like the Borla or Greddy.

I have driven ones with both exhausts and our Stage1 kit, and they definitely are stronger than with stock exhaust.

My other concern with intakes is that they tend to howl loudly.
My last two cars had aftermearket intakes, and thenoise was pretty powerful, more so than my exhaust mods.
I really notice this kind of thing at part throttle on the highway.

In any case, I believe there is more gain to be had in exhaust than intake, but I will be doing some dyno tests with exhausts soon, and I am hoping to get my hands on the Rotary Extreme intake kit soon, so will test with that as well.

In general I can say that adding intake and exhaust to a car in stock tune often does not add as much power as when the car is set up properly in terms of fuel/air mixture.

Originally posted by canzoomer
In any case, I believe there is more gain to be had in exhaust than intake, but I will be doing some dyno tests with exhausts soon,... Look forward to see what additional gains are to be had with the Stage1/exhaust combo.

My comment about stage 1 being technically illegal is that it is illegal to mess with ANY part of the emissions. The PCM is part of the emissions. Even if it doesn't raise emissions. In fact, it will probably lower them. Same goes for replacing the cat. with an aftermarket one. Even if the non-stock replacement works fine, it's still technically illegal.

This was all tightened up just last year. That's part of what happened to Mazda's HP claims. EPAII.

That's progress for you. A new EPA law that makes Mazda tune the car to put out more emissions to keep legal.

Unfortunately the regulations are mainly concerned about CO and NO, and not about total carbon load.

As a result the ironic part is that modern emissions laws cause cars to burn about 50% more fuel than they should..

As they say, if you don't like it, write a letter to your congressman!

So do you guys up in Canada have to follow the same EPA regs as all of us down here in the 'states?

I too have seen Genom's exhaust and it looks sick!!! very nice!! and sounds great

Originally posted by canzoomer
Correct.

I have NOT tested intakes.
All i said was that I think the stock Mazda intake is quite good, and i feel that little is to be gained there.

I think that exhaust on a car that is absolutely stock gains little, but that this is due to the poor state of tune in the car in stock condition.
I DO know that ones with the Stage1 installed seem to be quit strong with aftermarket cat-backs, like the Borla or Greddy.

I have driven ones with both exhausts and our Stage1 kit, and they definitely are stronger than with stock exhaust.

My other concern with intakes is that they tend to howl loudly.
My last two cars had aftermearket intakes, and thenoise was pretty powerful, more so than my exhaust mods.
I really notice this kind of thing at part throttle on the highway.

In any case, I believe there is more gain to be had in exhaust than intake, but I will be doing some dyno tests with exhausts soon, and I am hoping to get my hands on the Rotary Extreme intake kit soon, so will test with that as well.

In general I can say that adding intake and exhaust to a car in stock tune often does not add as much power as when the car is set up properly in terms of fuel/air mixture. .


I have a RE intake, but I took it off to run Stage I (with Borla exhaust) . Do you think it would be safe to put it back on ? Or should I wait till you have conclusive testing? Also, there's a thread about connecting the vaccum hose for the VFAD witht he RE intake.. it makes it ALOT quierter under 6000 rpms

Originally posted by Omicron
So do you guys up in Canada have to follow the same EPA regs as all of us down here in the 'states?
Yeah. It is SO PATHETIC!
The new regs basically say "just like USA EPA2"

They did not even bother to draft real legislation, jus tmade it point to the USA one.
Of course cars destinied for N. America have to comply with the same regs. A lot go over the border. most models are made identically for both US and Canada markets.