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Old 04-01-2015, 10:41 PM
kowal789's Avatar
kowal789 kowal789 is offline
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Join Date: Dec 2014
Location: Winnipeg, Manitoba
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Vehicle: 2011 Ram 1500 SLT 4x4 CrewCab
Trim Level: SLT
Color: Saddle Brown
Engine: 2010-20?? 345ci (5.7L) Hemi V8 383hp 400lb/ft (2500/3500)
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Default HEMI MDS question?

hello I have a 2011 ram 1500 SLT crew cab with the 5.7L hemi around 106,000kms. I have the MDS option, and it kicks In quite frequently in the city once I hit a regular speed or accelerate really slowly. Anyways, I was getting sick of the stock exhaust, so I decided to go with a "cat back", and simply pulled off my resonator and muffler. I now have it running the true dual from the cats out to a Y pipe straight out before my passenger side rear wheel. Will this exhaust set up affect my engine while in MDS mode? I was told a little trick by a seasoned mechanic, and he told me as long as I am not frequently backfiring, I have adequate back pressure. I only ever backfire when I mash the throttle and let off above 5,000rpm. (I just went through a water pump so I don't abuse my truck anymore ): )

I have done a cold air intake, bullydog GT platinum that I only run on a regular tune, (I noticed I got worse mileage in premium tune with premium fuel even driving economically) and everything else is stock engine wise.

I also figured it out for all of you MDS whiners.. To disable it FREE OF CHARGE with NO mods, just simply slap it into paddle shift, stick it to your top gear, and it will prevent your MDS from kicking in. It will still drive regularly, it will simply keep it from going into any higher of a gear than what you put it in.
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