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Exhaust 5.7 HEMI Exhaust Discussion


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  #1  
Old 06-02-2013, 12:55 PM
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Default MDS question.............

Is there anyone who replaced their muffler with an aftermarket one and leave your truck in "6" to avoid the drone sound?? And have you noticed a change in MPG from when you changed it to "6" from "D"????????
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Old 06-02-2013, 05:50 PM
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Default MDS question............

Is there anyone who replaced their muffler with an aftermarket one and leave your truck in "6" to avoid the drone sound?? And have you noticed a change in MPG from when you changed it to "6" from "D"????????
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Old 06-02-2013, 05:52 PM
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MDS is worthless. most likely wont notice a MPG change, yes you'll have to leave it in 6 to avoid the ups truck sound with a new exhaust. unless u get a tuner (I think bullydog has one out for your truck) and disable MDS.
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Old 06-02-2013, 06:03 PM
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Quote:
Originally Posted by Ram Dude View Post
Is there anyone who replaced their muffler with an aftermarket one and leave your truck in "6" to avoid the drone sound?? And have you noticed a change in MPG from when you changed it to "6" from "D"????????
Lots of people do this. I don't recall anyone complaining of a significant decrease in mileage.
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Old 06-04-2013, 11:45 PM
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The only way I ever drive mine is in 6 +/-. I agree that mds is worthless. I cut it off on my Charger R/T 4 years ago because I went muffler delete.
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Old 06-07-2013, 01:52 PM
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Seems like the shifting +/- you put it in 6 and the tranny shifts to that gear. so you leave it in 3. it goes up to 3 and stops. my wifes hyndai santé fe will go down to 1 and you have to shift or it will stay in that gear. Ours shifts to the gear you have it in. I use it for going downhills and that is it. its not like a paddle shifting car.
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Old 06-07-2013, 01:53 PM
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Quote:
Originally Posted by gonefishin776 View Post
MDS is worthless. most likely wont notice a MPG change, yes you'll have to leave it in 6 to avoid the ups truck sound with a new exhaust. unless u get a tuner (I think bullydog has one out for your truck) and disable MDS.
so the bullydog will delete the MDS? great! can you re-install it when you say go on a trip on a highway? is this a turn off and on feature on the bullydog?

thanks
Chris
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Old 06-07-2013, 01:54 PM
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Quote:
Originally Posted by Ram Dude View Post
Is there anyone who replaced their muffler with an aftermarket one and leave your truck in "6" to avoid the drone sound?? And have you noticed a change in MPG from when you changed it to "6" from "D"????????
hey mufflex has a drone pipe I saw. try that also.
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Old 06-07-2013, 03:01 PM
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yes you can re install it with the bully dog tuner.
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Old 06-08-2013, 12:47 PM
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I use the Diablo I1000-DCX and have shut off the MDS, I achieve between 18 -21 mpg depending on temperature and wind conditions on a 200 mile round trip every 3 weeks. I put a generic 14" muffler on and it sounds great. Even had a comment from the mechanics at the Dealer about how good it sounds.
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