Has anybody ever taken the stock muffler off and ran a single straight pipe out in front of the right rear?I was thinking of doing this but i don't think i'll have enough back pressure

 

I have done it with 2 of my mustang's (85' and 89') without loss of torque/back pressure. Not sure about the f150 though.

I had Midas do it back in the day for 20$ each car, but with stricter laws/emissions you may want call first.

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1998 XLT SuperCab w/ORP 4.6/auto/355LS/tow pck
LineX
Bug DeflectorII
Husky Liners
Rockford Fosgate 8320

94 MustangGT- stock
98 Honda VTR1000- "tweakt"