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Custom Dodge Ram Performance Mods - Engine - 5.7 HEMI V8 Discuss modifying your Dodge Ram with Performance Parts and Accessories!
Factory Spec: 5.7-liter HEMI® V8 engine - 390 horsepower, 407 lb-ft of torque.


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  #1  
Old 01-18-2013, 05:04 PM
tmac2012ram tmac2012ram is offline
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Default 2012 5.7 performance mods to tow trailer

I have a 2012 ram and I tow a 7000lbs travel trailer. My fuel milage is cut in half when I tow it so I am looking to do some mods to help on this. I think I am going to get the S&B CAI with the ram air attachment. I have the factory duels now and just want to replace the muffler and remove the resonators so what muffler should I go with and also am thinking on a tuner and want to know what one I should go with? also is there any other mods I should do to help?

so:

1- muffler ?
2- Tuner ?
3- other?

thank you
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Old 01-18-2013, 05:06 PM
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What gearset do you currently have?
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Old 01-18-2013, 06:19 PM
tmac2012ram tmac2012ram is offline
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I have 3.92 gears
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Old 01-18-2013, 07:35 PM
tmac2012ram tmac2012ram is offline
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Also I was looking at this. Is it worth it to get the ram air part or just go with the filter

http://www.ebay.ca/itm/New-S-B-True-...ht_4116wt_1398
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Old 01-18-2013, 09:56 PM
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Default

tmac, have you been towing trailers, travel or otherwise, for very long..even with other vehicles? When you say the mileage is cut in half, I get about the same results towing my travel trailer with the hemi. However, it's half of the mileage on a truck that easily gets 18 highway mpg and can often get 20 mpg under ideal conditions. My last truck was highly modded and had about the same power as my hemi, but it only got about 15-17 mpg on the highway. However, it got about the same mpg towing the same trailer. It's somewhat logical as to why this occurs when you consider all the factors.

I did the air intake, and I have an additional inlet that brings more cool air into the airbox. I also have a Borla flowthrough muffler in place of the stock unit. I think there's a small increase in throttle response and maybe even at times when I really have my foot in it, a stronger pull up mountains with the trailer. I don't think it hurt or helped mpg, however. I wouldn't remove the resonators. I don't believe they have any flow resistance...just sound waves. I've seen two late model hemi Rams with the resonators removed, and I think they have an irritating, raspy noise rather than the pleasant rumble.
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