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Old 09-04-2010, 03:32 PM
Dodge Ram Forum Senior Member
Join Date: Sep 2009
Location: Cushing, OK
Age: 33
Posts: 1,023
Gender: Male
Vehicle: 2009 Ram 1500
Trim Level: ST 2X4
Color: Bright Silver Metalic
Engine: 2008-20?? 287ci (4.7L) PowerTech V8 310hp 330lb/ft
Rep Power: 6
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Default CAT/Y-Pipe inlet size

I basicly asked this same question at the 4.7 exhaust forum but I think the specs are the same for the 4.7 as 5.7 in this respect (correct me if I'm wrong) so I'm repeating here to get more exposure.

What is the size of the stock pipe before the Y-pipe. I ask cause I want to order a performance y-pipe and need to know the size. Obviously this should be the same size and the stock CAT inlet and outlet size.

Anyone know the answer to this one?

Mods: Thule Xsporter 422XT bed rack, Underrail Rhinolining, MOPAR class IV Hitch, DIY CAI, Aero Turbine 3030.
Future Mods/Wishlist: Tuner, Daystar Comfort Ride 1.5" Leveling kit, Nerf Bars, Police style push bumper with light guards, KC or Thule trail lights, HID projector lights.
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