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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 01-06-2011, 10:49 PM
Truckkid42 Truckkid42 is offline
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Default 08 5.7 upgrade help!!!

my 08 hemi has a 6 inch lift and 36" tires. i now what to focus on the power aspect. i tow a lot and even a little change in MPG would be amazing!! been looking, in what order should i do the big three?? i was thinking intake, programmer, then new muffler. what gains will i see with an K&N intake, diablo preditor, and magniflow muffler??? need help asap.
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Old 01-06-2011, 11:30 PM
iRESQu iRESQu is offline
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Ok, in order: CAI, Tuner and Exhaust. As for added power???? I cannot give you a definitive answer, but for approx I would say for all 3 combined 35hsp at the crank.
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Old 01-09-2011, 02:12 PM
foulwhitey foulwhitey is offline
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i have all 3 mods. k&n, flowmaster with custom bent exhaust and diablo predator. yes, the power will be there but so will your foot on the gas pedal making the mpg gains minimal because the hp gains makes the truck get driven harder
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Old 01-09-2011, 02:51 PM
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^^While this IS true in many cases, the 3 will help you out a little bit in the MPG category, but won't make a huge difference. Do you know what gears you have? If you're running the 3.92, then you're pretty much where you want to be with 35s, but since you have the 36s i'd say step up to the 4.10s. If you haave the 3.55s, then you NEED to do a gear swap to get your MPGs back.
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Old 01-10-2011, 01:53 AM
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yes i cant feel diff in power lol maby just me. but my friend said in my truck that ya everyone right
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Old 01-10-2011, 02:14 AM
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^^WHAT!!^^ Just sayin'
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