RX8Club.com - RX-8 aftermarket exhausts SUMMARY

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- - RX-8 aftermarket exhausts SUMMARY (https://www.rx8club.com/series-i-aftermarket-performance-modifications-23/rx-8-aftermarket-exhausts-summary-16442/)

HKS makes an extremely good product, worth the money IMO

hey bob do you know how much an OBX Cat-back exhaust adds? thats what i just installed on my 8, sounds nice... if you could let me know? thanks

Quote:

Originally Posted by Rotary78

hey bob do you know how much an OBX Cat-back exhaust adds? thats what i just installed on my 8, sounds nice... if you could let me know? thanks

Have any pics of the obx exhaust?

I see it on ebay all the time. How is the quality?Sound?

Any sound clips?

Does anyone know which exhaust system flows best. I know that sound is very important,
but Since I have the Greddy Turbo and concerned about the restrictions of the turbo which
will also quite the exhaust system. I currently have the Mazdaspeed Exhaust and I'am
wondering if maybe it more restrictive than other systems out there, I also have the RP high
flow cat, which I love..

Any info out there about this.....

speaking of good exhaust flow on aftermarket exhaust systems is the new racing beat single exhuast exit good in flow? because i see it maybe exiting on the rear right? if so -- is this the best exit i think maybe a left exit would be better flow wise but im no expert so any out there seen the new racing beat single exit exhuast? and would care to express their opions on it?

Quote:

Originally Posted by bobclevenger

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

CHECK OUT THIS
http://www.re-amemiya.co.jp/sound/so..._8_verisa.html

any japanese readers? CUASE THAT SOUNDS GOOOOOOD

re amemiya makes so many cool products

Quote:

Originally Posted by bobclevenger

Good job! Nice research! Now, get that Darwin sticker off your ride and it'd be sweet!

someone should update this thread with new(er) clips. I.E the new ms exhaust. And clips with hi flo cat or midpipe. Seem like those thread about soundclips of midpipes and hi flo cats are popping up every week.

MS Exhaust VS Tanabe Super Medalion Hyper Spec.

I am trying to decide between getting the MS exhaust and Tanabe Super Medalion Hyper Spec. There has been lots of good press about the MS system, but little info on the Tanabe. Does have any advice.

Thanks in advance.

Brett

i don't have either. But search for username modena, he has the tanabe exhaust fitted on with soundclips available. There is also clips of ms exhaust lurking around.

Power wise like mention many times both would not yeild any noticeable gains so decide on sound and style.

Quote:

Originally Posted by brtzrx8

the tanabe setup will be louder, probably a little deeper and more aggressive and possibly slightly better power, the mazdaspeed gives 1-3 hp, they couldnt r&d mroe power with just a catback, but most companies get no more than around 5

Thanks for the tip. I checked out Modena's post and it does sound pretty sweet.

I think I will end up getting the Tanabe. It is a more expensive, but the tips are bigger (100mm vs 90mm), and the angled-tip complements the design to the car very well.

Thanks again...

Brett

Quote:

Originally Posted by brtzrx8

but the tips are bigger (100mm vs 90mm), and the angled-tip complements the design to the car very well.

Yep. Something nice about 100mm angle-cut tips :evil_laug :cool: :aroused: :naughty: :rolleyes: :rolleyes:

Cheers,
Hymee.

Quote:

Originally Posted by brtzrx8

yeah it particularly matches the exhaust exit panels how they both are angled downward

i have the ms exhaust on and im considering the rb.please leave your feed back.ms sounds like stock to me.I know its a waste of money but would it be a complete waste, im going more for the sound than performance

Trying to be unbiased...

From my own experience, and if you are after some more noise... The RB system is louder than stock, but quieter than the "Hymee".

Cheers,
Hymee.

But are they both louder than the new MS version?

new ms version how is that different than the other one?

Quote:

Originally Posted by needmorerotors

new ms version how is that different than the other one?

Originalk MS exhaust was single can and looked identical to OEM. New version is twin can design.

http://www.finishlineperformance.com/rx8/index.html

Quote:

Originally Posted by salituro64

But are they both louder than the new MS version?

From what I have heard it seems that the Racing Beat is one of the quietest aftermarket exhausts, but one of the best looking, IMO.

The new MS exhaust lets you know that there is something under the hood, although I have never heard the Racing Beat I am going to say that the new MS is probably louder. This is based on hearing others opinions.

Here is a link to a picture of the originial MS exhaust:
http://www.mazdatrix.com/8exhaust.htm

anyone know the horsepower gain of just yanking the exhaust off from the cat?

not sure but i dont think mufflers take off nearly as much power as a catalytic converter. one thing for sure is your car will be loud as a MF

hmm, i've really been looking forward for a B&B exhaust or borla (i for one want a little shiver down my spine when going over 5k rpm ;) ). the thing is that i was told borla was bad quality. some days later, i was told B&B is even worse then borla. would someone be able to tell me (perhaps personal experience) how much truth is behind these words?