I want to thank Bob and everyone who has posted here. It has made the job of finding info on exhausts much easier. I just placed my order for Hymee's exhaust from MazdaParts.

 

So no response on this?

 

check out the tanabe ultra medalion exhaust for rx8 looks good sounds like a good bet for performance to

 

Finally ordered my MS sport exhaust. Can't wait to get it.

 

You will LOVE it!! Got mine installed last week (along with the MS CAI). OHHHHHHHHH BAAABBBBBY!!!

 

Just got it yesterday. Not bad, ordered it from Rosenthal on 12/22 and recieved it in 5 days through the Christmas holidays. It looks sweet. Can't wait to install it.

 

My Hymee exhaust arrived last night. After reading the instructions, I did just like Jax RX8 and took it to the shop this morning.

I second everything Jax said. This is the way it should have sounded when it came from the dealer. Hymee did a great job!!

 

which one in the same Price range , greddy or BORLA???? want a real quick answer if possible i dont want to clog up this thread, or its just a personal opinion post real quick. thx

 

I'd say if you plan on changing out your cat pipe for a hi-flow cat or a catless midpipe, go with the GReddy. The Borla sounds pretty ricey with a hi-flow or straight pipe.

If you're keeping the stock CAT, it's a toss up. I have the GReddy and love it, but the Borla sounds good too.

 

Man..I really like that Super Dolphin exhaust on the RX8. Its a lot of money, but looks very different than anything else out there. Looks like a motorcycle exhaust/extractor with segmented welds similar to a ProCircuit dirt bike pipe. I guess the $1600.00 price tag will make this exhaust a rarity, but I would love to hear how it sounds regardless.

 

Hey everyone is talking about B&B and Borla, but the Greddy header back system sounded better and claimed the highest HP gain. Why does no one like the greddy? I mean yes its not street legal but there are so many ways around it and in my other car. A Mustang cobra. I dont have much street legal performance parts on there and have never been questioned about them when I have been pulled over. SO what is the deal?

 

The big deal is that some people still want their cars to pass state inspections.

 

I know but even living in a state where smog inspection are required, there are ways to get around it. Me for example I have my car registered in another state. Even if I did not, as long as you keep the parts for your old exhaust then you just put it on, have it inspected then take it back off and it does not cost much. Maybe me being military makes it easy for me to have my car registered in another state. I am thinking about getting an exhaust for my 8 and I want to know what street legal one is the best overall. I dont care if its a little loud. I am not a picky person when it comes to sound. I care more about overall performance. Thanks for your response though.

 

Has anyone used a cat delete and a cat-back exhaust from the same company? it sounds like everyone likes to switch them up a bit, but i was wondering if anyone had the cat replacement 3" pipe and the cat-back exhaust from racing beat?

 

I went throught the hole thread and I didn't find the size of the exhaust tips....I'm looking to buy the Mazdaspeed dual muffler exhaust and I would like to know the size of the exhaust tips and if possible what is the size of exhaut (is it 3"...)

Frank

 

IMO the JIC Ti is THE best RX-8 exhaust for the money, and I think you mean it's un-matched lack of sound, it's not much louder than OE with a nice tune WOT ... and extremely light for a full length dual tip system

unless you're racing, exhaust noise is for attention wh0res and wannabe poseurs

 

It is 3.5 inches, sorry for the dirty tips. It sounds GREAT too. I'll crawl under the car later and give you the pipe demensions.

 

waiting for my next pay check to get the new hks hi power!!

 

does anybody have a hf cat and the JIC? how does this combo compare to the hf cat and RB exhaust?

 

Today i have dyno'ed my RX-8 header system on my RotoTest hub dyno. Mods: Shell V-power 99 octane fuel Feritta race cat with 2.5" front silencer and single rear silencer with double 2.5" outletsand 3.5" "Gold tips" With the stock exhaust manifold 196 rwhp@8500 rpm, with the new header system 202 hp@8000 rpm. That's a gain of + 7 hp at cranc! The header is a prototype and therefore is made of steel and Mig welded. Now my Tig guru Peter is making it out of stainless steel. Hope to see +10 hp when the header is done. And this is without remapping the Ecu it 's just bolt on and go! Car is really fast, and have clocked 0-60 mph with stock manifold in 5.86s. Now a little bit quicker! I am planning to sell these 3 exhaust parts to Usa if everything goes the way that i want.

/Lasse

 

Thank you for the info I appreciate it.

 

Can someone with a JIC or RB exhaust please post a sound clip? I curious about the sounds of these at at constant acceleration as well as revving. Most post the sound of revving from idle, but what about simulated cruising speeds?

Thanks in advance.

 

someone said that the RB exhuast made the most hp out of all of them and they had dyno charts to prove it.

 

that would be a no... in the real world they all put up less than 10 hp. much less for most. this it with a stock cat..

a bit more with a mid pipe or hi flow cat...

the turbo xs was dynoed at i think + 22 hp with its midpipe. it is a three inch all the way back...

but it is way way loud...

beers

 

Does anyone have an input on the Agency Power titanium-tip dual outlet exhaust? It looks to be of high qualitly- but I'm torn between that or the B&B system. Or the JIC titanium system, but it's a little on the pricey side.

Dave