DOHC - 2.3L Duratec / Mazda L Engines Discussions and Topics specific to the Duratec 4 cylinder engines

Quieter Exhaust

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Old 01-09-2009
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Quieter Exhaust

I searched and have found nothing on this subject. Is there any muffler that will make the exhaust quieter than stock? Or is stock about as quiet as I can possibly get it?
 
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Old 01-09-2009
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I had a thrush turbo muffler from summit on my truck for a short period of time and I couldnt tell my truck was running. No one heard me coming. Had it mainly for deer season last year.
 
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Old 01-09-2009
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thats cool id love to have something that was dead silent from like 0-2800 rpms or so and then 2800 to 6000 to sound like str8 pipes :P would be cool imo.
 
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Old 01-09-2009
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So the Thrush turbo muffler is only really quiet at idle and cruse speeds? is it loud on acceleration?
 
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Old 01-09-2009
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I might have to check out that thrush turbo muffler. I want my truck to be as quiet as possible, so not being able to tell if the truck was running would be pretty nice.
 
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Old 01-09-2009
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Just use your stock muffler and add a elctronic opening cut out berfore the muffler and flip the switch at 3000rpm.
 
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Old 01-09-2009
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It was a thrush turbo muffler with a 14'' long case with 2in inlet and 2in outlet with a turndown and you could hear the fan over the exhaust all the way to redline.
 
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Old 01-09-2009
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With my OEM muffler I cant even hear it at all, just the intake.
 
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Old 01-09-2009
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Old 01-09-2009
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That looks like it, its the same price so it should be. I got the box around here somewhere.
 
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Old 01-09-2009
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Well I might have to try that out. So did you have the stock exhaust running all the way to the muffler, then just had a turndown coming out of it after that? Or did you have an actual exhaust shop put in new pipes and everything?
 
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Old 01-09-2009
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I put it on by myself. I cut my stock muffler off then welded in on with the factory pipe and had just a 45 degree piece on the outlet tacked on. Had it held up by a coat hanger, man was I cheap back then.
 
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Old 01-09-2009
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Okay. I'll just have to look where the inlets/outlets are on the stock muffler so I know if I need to buy one with an offset or centered inlets/outlets.
 
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Old 01-09-2009
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I used the offset one. (I didnt look before ordering) and I had heck installin it due to it wanting to hit the driveshaft. Your exhaust should be routed the same way as mine was. Should being the key word. I cut it of right where it started to bend going into the muffler and left the pipe alone where it was straight, then just welded the new muffler on.
 
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Old 01-10-2009
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I just went and looked and mine has an offset inlet and an offset outlet.
 
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Old 01-10-2009
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Then yours should be easier to route then mine.
 
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Old 01-10-2009
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quiet exhaust?!?!?!

WTF!!!!

Cherrybombs FTW!!!!
 
  #18  
Old 01-10-2009
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Originally Posted by timpat92855 View Post
I had a thrush turbo muffler from summit on my truck for a short period of time and I couldnt tell my truck was running. No one heard me coming. Had it mainly for deer season last year.
Was just going ask WTF the OP would want a quieter exhaust.......but for hunting, that makes perfect sense.
 
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Old 01-10-2009
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Yea thats the only reason I wanted a quiet truck. Now, I just walk further and have a loud truck.
 
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Old 01-10-2009
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lol :) I usually walk anyways as I don't have 4x4
 
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Old 01-10-2009
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Mines not 4wd but sometimes I swear it thinks it is. lol
 
  #22  
Old 01-13-2009
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Originally Posted by Rolldogg View Post
Was just going ask WTF the OP would want a quieter exhaust.......but for hunting, that makes perfect sense.

Or my reason...just tired of exhaust systems that can be heard a mile away. 2 loudest exhausts I've had were on a '64 Chevelle with a built 283 (actually a dirt track engine run on the streets) with headers & cherry bombs dumped before the axle. And the other was an '02 Kenne Bell SC'ed Mustang with lots of bolt-ons, O/R x-pipe and Borla Stinger cat-back exhaust.
 
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