Canzoomer/Harddata/Maurice is talking about doing just this as his next project. Check out this voluminous thread fro more info, towards the last 5 pages or so. https://www.rx8club.com/showthread.p...threadid=11614

 

We have just dropped off our Project 8 at B&B Performance Exhaust and they will be producing a prototype cat back and cat delete pipe. Should be done by next week. I'm excited! I'll let everyone know when I find out as we are planning to sell the exhaust and test pipe. If you want to learn more about B&B go here: www.bbtriflo.com

 

Thats awesome! vivid rules. Can't wait to see some numbers with a full exhaust done, with no restricting cats.

 

its the seam

 

Nice work Vivid.

 

everyone is talking about power gains, why aren't we thinking about the weight of the exhaust also? IF you have a good exhaust with good gains, the gains will be noticed even more if the weight is reduced of the system, thats why I say full titanium for weight savings and maximum power gains

 

From the folks that import Knight products:

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Hi how are you, that exhaust from Knight Sports runs for over $1100. Our sale price for it including shipping from Japan is about $1430, but we will be working on a large buy at the end of the year from japan so we might be able to save more on shipping

Thank you
Tony
www.rxcret7.com
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From my question to them:

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Hello…
The Knight Sport web page shows what looks like a RX8 CAT back exhaust. If so, what is the price and LT on the unit?
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uh huh...hell no.

 

maybe get rid of the dual tip design too.

 

My friends and I were bored tonight so we went out and tried to get some flames out of the stock exhaust. They didn't compete with the now-famous Speed Racer flames, but it was still pretty cool. Maybe they could've have been bigger if it wasn't cold and foggy out.

 

Here's the pic...

 

those are some hot flames mp. they look like a brazing torch flame. BTW i once say a guy with a pt boat turbin in an old ford t-bucket shoot flames. he hooked up the after burner to the exhaust (like twin 8 ''exhaust) and when activated it shot like 20 -25' flames.

 

My dad tells me stories about his flame throwing RX-4. It spit some flames under normal driving conditions, but he could make it shoot a good five-foot flame when he wanted. All he had to do was turn the car off while moving and give it some gas and proceed to turn the car back on (huge fireball accompanied with a deafening roar). He went through several exhaust systems on that car.

 

Sweet pic!!!

 

thank you.

 

The easy flame shooting from rotories are due to super rich conditions. Rotories are known for easy detonation, so they come running pig rich from the factory.

Without a cat, a freeflowing straight through exhaust will cause extra fuel to ignite in the exhaust, hence throwing flames.

As somebody said any car can do it, but I usually see it happening on modded turbo cars running no cat. I didn't have a cat on my eclipse gst with a full 3" exhaust, and on some occasions it would shoot a little fireball with my stock 450cc injectors.

One major misconception.... it doesn't hurt the engine, and i'm majorly anti-rice and I actually think it's pretty cool. But for the cali people it's not a good idea, it's a $1000 fine.

 

Just wanted to warn: If you have a Borla, and continue to shoot flames for a minute or so, the exhaust will get so hot that it does come out like a flame thrower!!! A continious flame that shoots out even farther whenever the gas is pressed. Saw it happen to a friends car who was trying to impress. He now has dark spots on the heat shield around his cat where he burned it. No engine codes yet, but they will probably be forthcoming. Be careful!

 

hello everyone, um this is my first post so not quite sure how to do this, but could anyone recommend a way to reinforce the plastic outer housing on the exhaust, because i am afraid that with new aftermarket exhausts they will melt it.

 

I guess one way would be to buy the exhaust finishers, that may help some.

 

I've put 250 miles on my greddy so far and it has not been a problem. This is also the largest tip out there. It might eb an issue with canzoomers stage 1, but I'll worry abo9ut that next month :D

 

The Greddy is a dual also?

 

Single cat back pipe, dual mufflers, dual exhaust outlet pipes. Some info is here, on Greddy's website, and more info is here in the summary post about all exhausts, including dyno charts and audio sound clips. Finally, here's the thread specifically about the Greddy exhaust, including notes from forum members who have them.

 

If the exhaust system gets too loud, could one stick a resonator/silencer before the muffler to reduce the sound?

 

Yup, you could. In fact, some midpipes (replaces the cat) are coming with resonators to reduce the additional sound.

 

So I don't know too much about how this all works...but I was intending on getting the Borla catback exhaust. But then somewhere along the line, I decided I wanted a more free flowing exhaust set up...but I don't know jack about this subject...

I was wondering..can I remove the cats with the Borla installed? Because the whole term, "catback" makes me think it's necessary for the cats to remain...Also, what's this about a mid pipe I've read about? What is its function and is it necessary if you want to remove the cats?

Basically what I'm trying to get at is, what are some options for me to consider if I wanted a free flowing exhaust set up on the car (that may not be street legal)?

What I plan to get so far: RE CAI, Borla catback exhaust...

Thanks...