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Old 11-07-2013, 12:07 AM
Hornet Hornet is offline
Dodge Ram Forum Senior Member!
 
Join Date: Sep 2013
Location: Airdrie AB
Age: 54
Posts: 1,541
Gender: Male
Vehicle: 2013 RCSB Ram
Trim Level: ST
Color: White
Engine: 2008-20?? 287ci (4.7L) PowerTech V8 310hp 330lb/ft
Rep Power: 2
Rep:470
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I have the Magnaflow dual exhaust kit on my 2013 4.7, the truck lost precious bottem end torque,it gets it back above 4,000 rpm till it short shifts itself at 5600 rpm,but how often do you drive at those rpm's.
I'd do as suggested above,a decent single in/single out muffler on the stock 3" pipe.
3" pipe is lots big enough for a 4.7,the muffler leaves a bit to be desired though.
I've looked at swapping the Y pipe as it is a bit crushed.
Not sure there's enough exhaust flow from the little 4.7 to make the y-pipe a restriction though
I have the AirRaid CAI and a ported 78mm throttle body on mine,can't say as i'd spend the money again.
If i was doing it again,i'd knife edge the stock throttle body and build a ram air kit for the stock airbox,and keep close to a 1,000 bucks in my pocket,but that's only my personal opinion
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