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Performance Discussion/Modifications (2011 +) Discuss any performance modification in this section of Dodge Charger Models 2011 and up.

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Old 11-15-2012, 11:32 PM
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stock exhaust question

which is the resonators and which is the mufflers? and which has the MDS baffles in it?
i made an appointment for tuesday to get some part of the exhaust cut off the car and im not sure which one i want to remove.
im leaning towards the big canisters under the trunk.
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Old 11-16-2012, 01:07 AM
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The resonators are the ones in the back behind the rear axle and the mufflers are in the middle in front of the rear axle.
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Old 11-16-2012, 11:40 AM
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Originally Posted by KJT38 View Post
The resonators are the ones in the back behind the rear axle and the mufflers are in the middle in front of the rear axle.
alright thanks
i think im gonna take the resonators off then. i hope it sounds decent.
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Old 11-16-2012, 05:44 PM
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alright thanks
i think im gonna take the resonators off then. i hope it sounds decent.
Post a sound clip of it. Thinking of doing the same thing to my Charger.
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Old 11-16-2012, 11:51 PM
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Post a sound clip of it. Thinking of doing the same thing to my Charger.
will do when its done.
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Old 11-17-2012, 04:59 AM
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I have heard a few...sounds good...good luck
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Old 11-19-2012, 07:36 AM
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keep the resonators, take the mid mufflers off, otherwise you'll have drone at highway speeds, especially when MDS kicks in
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Old 11-19-2012, 10:23 PM
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keep the resonators, take the mid mufflers off, otherwise you'll have drone at highway speeds, especially when MDS kicks in
wouldnt it be more of a performance gain to take those big canisters off?
i was also thinking of removing both and getting a set of 20 inch magnaflow mufflers.
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Old 11-20-2012, 05:42 AM
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no.

1) the stock 2.25" mandrel bent exhaust flows well enough to support ~400HP without significant HP loss.

2) as exhaust cools, due to the ideal gas law (PV=nRT), it's volume reduces (for a constant pressure, P, as temperature T goes down, volume V goes down), so the resonators way in the back where the exhaust is much cooler than it is at the manifolds really aren't much of a restriction.

3) as far as drone is concerned, one of the big factors for resonance RPM is pipe length, especially free length after the muffler. think of a pipe organ--longer, larger pipes have a lower resonant frequency...or think of blowing across the open top of a 2liter pop bottle---empty, it's a low tone...fill it half full with water, the frequency raises substantially....to minimize drone, you should put the mufflers as far back as possible, with short tailpipes....which is basically what the stock resonators are...mufflers all the way back with short tailpipes.
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Old 11-20-2012, 07:38 PM
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I took my resonators off a few months back. The drone is is not bad at all.
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