Spec miata exhausts
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Umm no, actually most are at least resonated to meet the maximum noise level rule. Most are also tuned on a dyno. Some builders are expermenting with internal fan systems that use the spent gasses to "draw" themselves out.
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You're quite welcome, Steveoops didnt use the search button, thanks Bryan
I really only found it because I happened to remember reading the topic just a couple days ago.
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Here's an example of what one looks like.
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I don't know, everytime I've seen a video of spec miatas, the exhausts sound really obnoxious. Fine for the track, not good for the street.
http://video.google.com/videoplay?docid=-4816225206577553762&q=spec+miata
http://video.google.com/videoplay?docid=-4816225206577553762&q=spec+miata
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Well of course the Spec Miata exhaust is suppose to be obnoxious it is a race car. They do have to meet the noise level per each race track. You get away with a loud exhaust by looking for the 2 guys on the side of the track with the mic and turn your elbow pipe away from the mic. I raced many times while I lived in FL and that is what everyone down there did. I even used a few Miata's that I knew that was to loud. I know the Mazdacomp one isn't that loud. The straight pipe ones can be very loud. I am now building my '91 Miata as a Spec.
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Yup, like I said, straight pipe. Oh well maybe it has a resonator....:roll:
Sounds like ARSE!
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Ain't nothin' like standing in a cinderblock building with the dyno at ear level and a Spec wound out to redline, is there J?
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I'll have one soon... a club member has one, went back to stock. I'm picking it up from him next week to try out. If it's not too loud, I'll keep it.
It's a straight pipe from the cat, back to a small muffler in the stock location. Will post pics when I get it.
It's a straight pipe from the cat, back to a small muffler in the stock location. Will post pics when I get it.
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I'm running one in my 91. First in E Stock Solo2, now in STS2.
Here's a pic.
My original thoughts after installation were:
"It's pretty light and really well made by Bosal. I hope it adds some horsepower and that it's not too loud.
Update: Spec Miata System is 5 pounds lighter than OEM. It is 2 times louder, but has a nice low burble at idle and an aggressive ripping sound during hard acceleration. Bad part is a droning at partial throttle between 3000 and 4000 RPM."
The sound level differences between stock and the Spec Miata are very noticable. When I first put it in I thought it was too loud and would switch back and forth between AutoXs. It does improve top end a little and being lighter is a plus.
It does set off car alarms as I drive by so that's an indication of the sound levels. My 17 year old son loves the sound and noise level. After two plus years continously in the car I've grown to love it too. The droning at highway speeds (3000-4000 rpm) could irritate some folks.
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:lol: So you decided to go for it, eh?
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Well the price is right... and it'll give me something to do other than sit around!
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