back pressure
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More Turbo
Joined: Feb 2014
Posts: 656
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From: New Braunfels
back pressure
Ok so I have a 95 f150 wit 4.9 (my sig truck) I decided to cut off my muffler the other day to see how it sounded 
, I like how she sounds but the question is, did doing that kill my back pressure? both my dad and neighbor said I'm bound to drop a valve now that I don't have my muffler or the back pressure it provided, I figured that the cat would still give it sufficient back pressure, maybe I'm wrong? let me know yall, plz & thank you! 
, I like how she sounds but the question is, did doing that kill my back pressure? both my dad and neighbor said I'm bound to drop a valve now that I don't have my muffler or the back pressure it provided, I figured that the cat would still give it sufficient back pressure, maybe I'm wrong? let me know yall, plz & thank you!
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