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Old 02-18-2012   #1
93gtpeater
 

Join Date: Apr 2008
Location: stillwater
Drives: cbr 1000rr repsol
Posts: 1,451
Re: Quiet High Flow Mufflers?

Just throwing this out there but electric cut outs? go from quiet to loud with a flip of a switch and not loose any power when you want to rip on it. But you proably want it quiet all the time? The hushpower muffler work pretty good from what o have heard. My budies dad tried them out on his nova. But now hes not running them anymore since he never drives the car on the street. You will neec 2 mufglers to quiet a 600hp car down.
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Old 02-19-2012   #2
Speedfreak
 

Join Date: Jul 2004
Location: MN
Drives: four tires
Posts: 1,608
Re: Quiet High Flow Mufflers?

Quote:
Originally Posted by Halon View Post
Might sound like a ricer idea, but would you consider running some sort of dual exhaust? You could run twin 2.5" mufflers kind of like what I'm running on the bean, and you know how quiet it is.

Otherwise you could try something like a Dynomax Super Turbo muffler. Obviously not going to flow like a straight through, but a lot of guys in San Diego ran them back when I lived near there. Since they're so strict on modding/emissions, it's what they did to keep the noise down, but still have something that flows ok.
http://www.dynomax.com/mufflers.php?muffler=superturbo

The DSM that ran in SCC's car challenge back whenever that was (10year ago?) ran one.
http://dsmporn.com/
I would do whatever it took to make it quiet. However I don't believe there is any space on the other side of a 1g awd(on the other side of the gas tank/trunk).

I'll look into that muffler and peoples reviews of the loudness etc.

Quote:
Originally Posted by Goat Blower View Post
I did some research on this last year and basically I came up with the fact that the larger diameter the muffler, the more noise suppressing material is in there. So even a 3" straight through muffler with a 6" diameter can will be much quieter than say a glass pack.

I'm looking for the same thing with my build this spring. I went back to a 3" system comprised of a Thermal cat back, but it's way too loud for what I want, so I'll be looking for a good quality mid muffler in addition to the rear muffler the Thermal comes with. Either way, with at least 3" piping and a good quality muffler, there really shouldn't be much restriction in it.
Yeah, the car got quieter when I added the second muffler, as the second is now an oval and larger, but still way to loud for my tastes these days. I'm open to anything I can fit. One thing that has to change is the current 6" circle muffler by the center of the car has to be replaced by a glasspack or something of that size, as it rubs under WOT..

Quote:
Originally Posted by 93gtpeater View Post
Just throwing this out there but electric cut outs? go from quiet to loud with a flip of a switch and not loose any power when you want to rip on it. But you proably want it quiet all the time? The hushpower muffler work pretty good from what o have heard. My budies dad tried them out on his nova. But now hes not running them anymore since he never drives the car on the street. You will neec 2 mufglers to quiet a 600hp car down.
Considered it, but don't want to fiddle with anything. Just want it to be as quiet as possible all the time. I loved the sound(or lack thereof) of Fast Mark's old turbo cobra. It made nearly 1000whp and you barely heard it(relatively speaking) when doing pulls on the highway.
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