RX-8 aftermarket exhausts SUMMARY
 

OK, here is what I have found so far, all in one place.:)

First, the sound of a stock RX-8 -- click here

http://www.bobclevenger.com/rx-8/stock.jpg

Second, "Header-back" systems -- these are NOT street-legal:

Greddy: Price is about $1000 for complete system.
Greddy claims a 22HP increase over stock for this.
Click here for info

B&B: Price is about $950 for the cat-back system plus the race pipe.
Vivid Racing claims a 19 HP increase over stock (unknown if this is with or w/o cat).
Click here for info
Click here for video clip


Third, Street-legal systems with cat. If the info isn't there, I didn't find it. If anyone has any more info on an exhaust system for the RX-8 please e-mail me at bob@bobclevenger.com and I will add it to this post. That way we keep all the exhaust info in one place.:)


On to the exhaust systems!

Autoexe: Price is about $1100
Click here for photo
Click here for info


B&B: Price is about $700.
Vivid Racing claims a 19 HP increase over stock (unknown if this is with or w/o cat).
Click here for info
Click here for video clip


Borla: Price is about $600.
Borla claims 11.5 HP gain over stock.
Click here for sound clip
Click here for Borla website


Greddy: Price is about $625
Click here for photos
Click here for dyno charts
Click here for video clips


HKS: Price is about $1300.
HKS claims 9 HP gain over stock.
Click here for info
Click here for a video clip.

Hymee's cat-back system
Dyno test to come
Click here for info and photos.


JIC: Price is about $1700 for Titanium and about $900 for Stainless Steel.
JIC claims 5 HP gain over stock
Click here for info


Magnaflow: Info in this thread
Click here for sound clip Thanks to Zoom Zoom for letting me record his exhaust. Sounds nice!


Racing Beat: Coming soon
Click here for info


Rotary Extreme: Price is about $600
Click here for info Video clip is available from this site.


RX8store: Price is about $575
Click here for info
Click here for a sound clip.


Spintech: Price is about $550
I have the first production unit on my RX-8.
Dyno testing will be done after 1 January 2004.
Click here for photos and a sound clip of this exhaust being driven.
Click here for manufacturer's website

Nice work putting this together bob, thanks!

B&B exhaust should be around $660 I believe.

'Sticky' someone quicky!

Thanks for the info -- already added!

Quote:

---

'Sticky' someone quicky!

---

I believe this is already being worked on.

add this to your info..: the B&B exhaust makes 19 hp to the wheels...

Is this the manufacturer's claim or data from a test? If it's the manufacturer's claim I can list it as such; if it is from a test, I'll list it as soon as I see the test data.
Thanks for the info.

from what huff from vivid told me....from midrange the 8 on average produced 12hp to the wheels...at top end it peaked at 19 to the wheel...check his sight for any diagrams...was i more clear this time?

Yes. Thanks for clarifying.

nice keep updating... good one - it will be one of my definite mod

bob and xdeed - From what I understand the B&B exhaust which claims the 19hp your speaking of, is WITH the midpipe AND exhaust NOT just with the exhaust only.

Just a FYI for the sticky.

With the info above I have narrowed down to the B&B or Borla. Thanks again for collecting all the data.

success07
Get your butt over to my shop and let us put our exhaust on your car. Free dyno time for you also and exhaust at cost. If you dont like it I will take it back and you can have one of the others at my cost. You cant beat that :D

Jason

thanks
this is a great thread
exhaust is my next upgrade

Looks awesome Bob! :D

Jason, You're right, I can't beat that! I left you a v-mail on your cell Sat. afternoon. Let's get a day that it isn't snowing and I'll be over. PM or call me and we'll get it put on.

I have just updated the Spintech info (see first post in this thread).

Its what is down-under that counts!
 

Hi guys,

I know you are proliferated with options of what is available in the USA.

We have produced the first "Hymee Exhaust - Stage 1" Catback :)

Please see the following thread for some more pics and reviews including sound opinions:

https://www.rx8club.com/showthread.p...threadid=16734

Cheers,
Hymee.

PS - $850 Australian is about 630USD.

Hymee

Guys imagine the cool factor of having a hymee Australian exhaust on your cars at halve the price and in some circumstances better workmanship./ better materials , steels aint steels .

Nichael

Bob, Outstanding thread, keep up the great work!

Here's some nice pics of most of the exhausts side by side. See this thread https://www.rx8club.com/showthread.p...threadid=17242 for more info.

Hey guys I was wondering what happens to your warrnty after you put on an aftermarket exhaust and intake system. Besides just taking it off and putting it back on. Does an aftermarket exhaust only void your exhaust warrnty? Any answers will be greatly appreciated thanks.

You got it... it only voids your exhaust warranty. See this thread for more info.

do you have mazda speed exhaust sound clip?

No. If I had it, it would already be added to the first message of this thread. If anyone has any exhaust clips they want to add, just e-mail me about them -- my e-mail address is in my profile. I can put them on my server and link to them here.

Who has the quiet one?

Elucidate, please.

Failure to Elucidate

Definition

The definition is harder to understand than the term being defined.

Examples
(i) Someone is lascivious if and only if he is wanton.
(The term being defined is "lascivious". But the meaning of the term "wanton" is just as obscure as the term "lascivious". So this definition fails to elucidate.)
(ii) An object is beautiful if and only if it is aesthetically successful.
(The term "aesthetically successful" is harder to understand than the term "beautiful".


Proof

Identify the term being defined. Identify the conditions in the definition. Show that the conditions are no more clearly defined than the term being defined.
References

You apparently understand the meaning of elucidate, but do not wish to do so.

I was merely asking to what "the quiet one" referred.
Are you asking about an aftermarket exhaust that is quieter than stock? To my knowledge all the aftermarket exhausts available for the RX-8 (other than something custom made to be extremely quiet) are louder than stock. Mine is probably the quietest of the bunch.

Thanks Bob,
That is what I was looking for......the quietest of the bunch.
You did do a nice job.

Kind regards,
Doug
Las Vegas

I have a custom system made by Spintech in Riverside, Calif.
They will be making it as a regular production model.
I think it is quieter than the other aftermarket systems, but a little louder than stock with a different tone.
I am awaiting a call from Spintech to do some dyno tests.

what you think about the mazda speed exhaust?
it is good exhaust?
i m intrested in e gredy or a hks but im lookin for a mazda speed exhaust just for dont loos the garanti

MazdaSpeed exhaust is basically a stock exhaust with the mazdaspeed logo on the tips that is all

i was looking at getting the greddy w/ midpipe...how do the ppl that actually have it feel towards it? etc

I just wanted to post a couple of video clips that I took of my 8 getting some dyno time after the installation of my RX8Store Exhaust. They were originally digital video that I transferred into an mpeg, so the video quality isn't the greatest but you'll enjoy the sounds I'm sure.

Jason & Xavier from the RX8Store as well as Sea Ray (all the way from Kentucky) were there for the fun. Special thanks to RX-8Freehk who put these into a format that the forum would take. There is one more video that is still trying to make it's way back from Germany where Freehk is at but enjoy these for now.

http://members.cox.net/rx8freehk/MOV00288.MPG

http://members.cox.net/rx8freehk/MOV00289.MPG

That exhaust sounds nice. Not too loud.

Did they do a before dyno and if so, what kindof hp gains did it make?

Here is the third and final dyno run video for the RX8Store Exhaust. I love this view! :D

http://members.cox.net/rx8freehk/MOV00290.MPG

good links man

Here are some MP3's I recorded of the Hymee Catback.

Start and Idle with a small throttle blip (521KB)

Short drive with windows down (738KB)

Start, bigger throttle blips, 1st gear drive by (917KB)

Best to "Save As..." them to your hard drive.

And there is before and after dyno tests on this thread:
https://www.rx8club.com/showthread.p...threadid=20286

Cheers,
Hymee.

great posts everyone. this was alot of help for me, bobclevenger. thank you for spending the time man. this was alot easier than trying to find all the clips through various websites. the work was done already :D . thanks again

Hey guys< I am about to order the Borla system. It appears to me for cost $600 roughly and performance which is a supposed 12hp gain I read in another post it make sense. The fact that borla exhaust sounds deep and throaty I love the idea. Please can anyon etell me otherwise? Chime in please!

I would be very dubious of any catback system that claims 12HP! There is honestly not that much there to be gained.

BTW - Here is a pic of the recent Rotary Engine Track Day:

http://rx8.hymee.com/images/wakefield2004/Dscn5707.jpg

There are 7 RX-8's in the photo, and 4 of them have the my Hymee Enhanced "Cat Back".

We measured one of these at an honest 2kW which is about 3HP. That is in-line with what Racing Beat claim for theirs.

Cheers,
Hymee.

thanks for the clips Hymee. Exhaust sounds great

What about Mazdaspeed's exhaust? What are the specs on that? Which is exhaust sounds good and loud when you step on it but isn't always overbearingm someone mentioned to me HKS ?

Re: RX-8 aftermarket exhausts
 

Any information on the weight of all the currently available aftermarket exhaust system. Thanks

The shipped weight of the Hymee system is 17kg. So take off a few kilograms for the big carton and all the bubble wrap.

Cheers,
Hymee.

hymee exhaust sound the best... personal experience... of course is before my Fujitsubo exhaust land to Australia ;)

still no one has the Mazda speed ?

cortc has P/M him

why cant i see all of the rx8store exhausts? i ordered that exhaust yestrday and havent heard a clip yet. does anyone know why i cant see them?

On the first page of this thread there is a summary.
On it there is an entry for the RX8store exhaust.
Click on "more info" to see it.
If you want to HEAR it, I have bad news.
Unfortunately the link to the sound file does not work any more. I assume that RX8store has removed it from their server, but I don't know.

Any info on the Tanabe?

I have none.