One thing that has annoyed me and passengers in my Ocho was the Road noise. I looked into several options for reducing road noise and have finally come up with a definitive yet simple and inexpensive solution to completely remove road noise from the RX8.

All that is required was a complete stereo upgrade, all cabin speakers were replaced with MB Quarts that can handle 150 rms. Next I added two Alpine 10" type R subwoofers, One Alpine pdx 1.1000 amp, one Alpine pdx 4.150 amp and lastly a Rockford Fosgate 3Sixyt.2 sound processor.

Now you may be wondering how a simple inexpensive upgrade like that could reduce road noise. Simple once every thing is installed just turn your volume up to lets says 20 and plays the song of your choice. At that volume I defy anyone to hear any road noise or even carry on a conversation, it just can’t be done. Now if you like to drive with your windows down and wind noise is an issue just turn the volume to around 30 and like magic you can’t even hear the wind.

I hope if any of you are experiencing road you can use this cheap simple solution to eliminate it :blue:

nice solution. Just wait till your bass starts making things rattle, you're gonna love it! ;)

lol, nice solution!

How in hell was that cheap.

so you can't hear anything outside at all like sirens?

What sirens ?

changing your tires makes a significant difference if you care about that kind of thing.

for real, how the hell is that inexpensive, btw, I'm not adding shitty weight to my car till it gets 400whp

you calling my stereo "shitty weight"?! ;)

Hey inexpensive .......... expensive its all relative, kinda like rough sex, date rape or being raped in a prison shower or vice versa its all a matter of perspective.

Ya this solution works great for sirens, every time a police officer has pulled me over I never once heard his siren.

If your concerned about weight just don't ride with fat chicks and get rid of some non essentials A/C compressor, airbags and such, ohh maybe pop the ash tray out while your at it.

^ first of all, I don't have a clue what you are rambling about

jedi, unless it can shake the ground across the intersection, I will not put it in my car

Play it loud enough often enough, and eventually you won't hear the road noise even with the stereo off. :)

LOL - well that's one way.

The tires are at fault here of course ... new tires = less road noise.

changing your tires makes a significant difference if you care about that kind of thing.

The tires are at fault here of course ... new tires = less road noise.

+1

I got me some Hankook autocross tires, and I don't get what you mean by "road noise". I drive with the window slightly open, and no stereo.

If you mean the symphony that comes out of Rena's rear end, I can hardly call that "noise".

what road noise are you guys talking about?
Rx8's are extremely quite.

Now evos....they are a different story, you will hear much much more road noise.
They make all kinds of different noises...I used to own one.

what road noise are you guys talking about?
Rx8's are extremely quite.



Define 'extremely quiet?"

Better tires, Dynamat=two best options.

I've never had any issue with road noise, ever.

Define 'extremely quiet?"

Compared to my evo, the car is very quiet under 5k rpm.
Once you get past 5k rpm the engine obviously gets louder but no where near the
evo.

Also, the tire noise is so loud on the evo it's unbearable sometimes...you'll notice this more once your tires starts wear more.
BTW, there is a lot less sound-deadning materials on the evo.

Better tires, Dynamat=two best options.

I've never had any issue with road noise, ever.


Dynamat is the best solution. Do the entire interior, door panels, trunk, and firewall, and you should be great.

sounds like a plan!

The best part of this solution is that after a few years of it, you wont be able to hear anything at all! You'll never need to worry about road noise again!:lol2:

True dat, double true :)

Well, it's one louder, isn't it? It's not ten. You see, most blokes, you know, will be playing at ten. You're on ten here, all the way up, all the way up, all the way up, you're on ten on your guitar. Where can you go from there? Where?

Don't lower the car.

Get Dyno mat and do the doors.

No more road noise.

Don't lower the car.
coming from the guy with coilovers... :rofl:

^ I'm not complaing about noise...

But it is alot louder than stock. She's so low it's hard for me to get in and out!

Only road noise i get is when i hit the backside of the gas pedal!!

My glove compartnet rattles... it started off as a non-issue but now when I drive I fixate on it and I want to drive off a bridge to make the rattle go away... I tried adding rubber stoppers ON TOP of the existing contacts to increase tentionbetween the two surfaces and eliminatemovement, but that didn;t work :( Anyone else got an answer or a similiar problem?

HELP, that bridge is looking mighty tempting after 50 minutes of rattle... rattle... rattle...

Even when I turn the radio up so I cant hear it.. I know it is still there.....

It's hard for me to believe some of you are complaining about road noise.

Go ride in a different car (evo), and you'll really appreciate the quietness of our cars.

BTW, I am against anything that will add extra weight on the car.

My glove compartnet rattles... it started off as a non-issue but now when I drive I fixate on it and I want to drive off a bridge to make the rattle go away... I tried adding rubber stoppers ON TOP of the existing contacts to increase tentionbetween the two surfaces and eliminatemovement, but that didn;t work :( Anyone else got an answer or a similiar problem?

HELP, that bridge is looking mighty tempting after 50 minutes of rattle... rattle... rattle...

Even when I turn the radio up so I cant hear it.. I know it is still there.....

Is your box actually hitting something (the dash)? or are the items inside causing the rattle?
Your solution would only fix the first issue, right?

I whipped up a felt lining for my 'box - i had stuff in there that would rattle against the plastic... (lug key, etc.)

The angles were a super pain to get decent fitment with a single piece of fabric & in the end i got a little lazy (after about a week with it removed) and decided it was good enough to just put it in.

I made it removable in case i want to redo it or put it back to stock.

Works great!

destroying my ear listening to jibberish music isn't really a good way to go

jibberish you say Obviously you need to listed to one of my mixed CD's with classics by VANILLA ICE, LATOYA JACKSON, YANNI, COLOR ME BADD, Poison, Huey Lewis & the News, David Hasselhoff and Yoko Ono..... Then my friend I'd like to hear you say its jibberish :evil_laug

[QUOTE=tajabaho1;2054174
jedi, unless it can shake the ground across the intersection, I will not put it in my car[/QUOTE]

you obviously haven't heard the stereo in my 8. :rock:

Ewwww, don't use Dyno mat....


I'd go for this
http://www.edesignaudio.com/edv2/product_info.php?cPath=24&products_id=53

Then this
http://www.edesignaudio.com/edv2/product_info.php?cPath=24&products_id=52

Zzing!

Try switching tires. Some performance tires makes more noise than others. It doesn't bother me lol. If you want a silent and comfy ride with heavy audio equipment, then you should've bought something else.

hmm i dont get how the RX-8 is noisy.......its a freakin sports car...not a camry or accord...nor a luxury plush ride... I for one dont mind the noise...its actually a nice hum.....but its not obnoxious and its pretty quiet on the freeway...with the windows up.....anyways its a sports car, its suppose to be a bit noisy to give you some feedback on whats happening underneath you......

I don not think it is noisy at all.

My Eclispe was nisy as hell. Too much from the doors.

I don't mind the road noise, I don't even hear much of it and I'm coming from an Acura CL Type S. What I DO mind is that my 2007 car seems to be the proverbial "rattle trap". I've never had a car rattle so much and this is my first new one. The driver side door has at least 3 rattles, the suicide door has 1, the dash has 1-2, the rear deck lid has 1 and sometimes the gauge cluster rattles...and it hasn't even been cold here yet.

I implemented many of Polak's fixes to no avail. I can't believe the car rattles this much...maybe that's why I can't hear the road noise.

I took EVERYTHING out of the glove box and it still rattles. and the little vent on the left above the main ac vent drivers side rattles too, but I think I can fix that with an adhesive to keep it from shifting back and forth.

Dont mean to hijack this thread but since we are talking about rattles.....

I have 2k miles on an 07 base manual car. Its really quite right now. So about how many miles before serious rattles developed?

Some road noise but on the only "long" trip (Orlando to Tampa) I have taken I just got used to it.

Find out.