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anyone with intake+highflow cat?

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Old 04-05-2006, 11:51 AM
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anyone with intake+highflow cat?

anyone here have this setup with the stock exhaust? i really don't want my car to be loud but i do want a little more hp. i just installed my re intake yesterday and the sound is addicting. i just don't wanna drive around sounding like a rice rocket. i want my car to be quiet until i get on it.
Old 04-05-2006, 01:32 PM
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I had this configuration for a while (intake and high flow cat). The sound was fine. I too was concerned about the "ricey" sound but did have a problem. I had the RP cat which I will reccomend.

I say go for it.
Old 04-05-2006, 01:32 PM
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I'm still waiting to install my high flow cat but I have the Revi and Ram air. I plan on making sound clips before and after. I wouldn't mind posting them up, but I'll have to find a place to host it.

I bought from RX8store. Check out this thread - https://www.rx8club.com/rx8store-62/midpipe-highflo-cat-pricing-80014/
Old 04-05-2006, 01:48 PM
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I have the same setup and my car is loud as hell.....
Old 04-05-2006, 02:02 PM
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Malamore has the Revi with the SR high flow and it sounds nice. Not loud, but a person can definitely tell there is a difference from stock when the RPMs are cranked up.
Old 04-05-2006, 02:49 PM
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Originally Posted by frankcastle123
I have the same setup and my car is loud as hell.....
Same as me?

If so I hope your perception of loud is quieter than mine. I don't need extra attention.
Old 04-05-2006, 03:14 PM
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i don't mind being loud at WOT. but cruising and partial throttle i want it to be as close to stock as possible. when you say loud as hell please tell me it's only at WOT.
Old 04-05-2006, 05:05 PM
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i have aem cold air and the B&B midpipe no cat. its loud when i want it to be and i can shoot flames and burn peoples bumpers when they get to close. LOL


the car sounds mean it has a V8 kind of rumble at idle


p.s i have a stock exhaust.
Old 04-05-2006, 06:11 PM
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Originally Posted by 8is>enuff
I'm still waiting to install my high flow cat but I have the Revi and Ram air. I plan on making sound clips before and after. I wouldn't mind posting them up, but I'll have to find a place to host it.

I bought from RX8store. Check out this thread - https://www.rx8club.com/showthread.php?t=80014
I have this exact same setup. I didn't like the sound at first, coz to me it sounded like a scooter when I apply heavy load. Other than that, it is not loud. It rubbles in a deep tone. It's quiet at idle. Below 4K RPM sounds really nice. Above that, it gets louder and higher pitched.

Oh and I have leaner AFR mixtures up top, so that might contribute too.
Old 04-05-2006, 06:13 PM
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Originally Posted by eclps0
the car sounds mean it has a V8 kind of rumble at idle
I was going to say the same V8 comment, but I didn't want to sound like a dreamer. So I guess it's not just me. The rumble at cruising speeds sounds like a V8 to me.
Old 04-05-2006, 06:39 PM
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ok so it's safe to say that it isn't loud when cruising. i really don't care how loud it is when it's WOT but i just want to be quiet normal driving.
Old 04-05-2006, 06:50 PM
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I have the Revi w/air duct, Magnaflow cat back and the S&R high flow cat plus a resonator and I set off car alarms way before I get to the cars.I'm actually considering selling my exhaust or h/f cat.I'm gonna see if I can have another muffler or resonator installed somewhere to minimize the sound some.
Old 04-05-2006, 07:14 PM
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how much you selling for? i might be interested. can i take off the resonator on the cat?
Old 04-05-2006, 08:51 PM
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I'm sure you can, if you weld a new piece in place of the resonator.

Muffler shops can normally do this.
Old 04-05-2006, 11:35 PM
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resonators only remove rasp, they do not quiet the exhaust like a muffler
Old 04-05-2006, 11:46 PM
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thanks for that info. how much performance is lost with the resonator.
Old 04-05-2006, 11:55 PM
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none other than the minimal weight gain, it's a straight-thru design
Old 04-06-2006, 01:42 AM
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The word resonator makes me think of it is doing the opposite of what it does.

Does it make the sound lower? If it does then I see where it can resonate.
Old 04-06-2006, 01:48 AM
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It resonates the raspiness sounds away, but does not muffle. Feel better now?

Resonator
The function of the resonator is to remove exhaust resonance or "boom" at particular engine loads without restricting exhaust gas flow affecting engine performance.
Like any true resonance system, it has to be tuned specifically for the entire exhaust system used or it will likely not be effective ... people using the MS dual-can exhaust are reporting boom despite having the OE resonator in place

Last edited by TeamRX8; 04-06-2006 at 01:54 AM.
Old 04-06-2006, 02:32 AM
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That makes sense. Those MS exhausts with the dual cans can be very obnoxious. At least that is what the videos portray.
Old 04-06-2006, 09:57 PM
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When you installed the exhaust and the intake did you get a cel? wanna change mine but dont want the light to come on. Anything out there?
Old 04-06-2006, 10:13 PM
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no CEL, unless you are going for a catless midpipe. Some aren't even getting CEL with their catless midpipe (very rare though).
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