Hi-Flow Cats
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Freshman User
Joined: Apr 2003
Posts: 28
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Hi-Flow Cats
Will a hi-flow cat increase the sound on my truck ( 1992 f-150 5.0 w/flowmaster 40 si/do) drastically? I want my system louder and right now the only mod is the flowmaster 40 series SI/DO with 2.5 piping and 4" tips. I still have the 2 stock cats. I'm either gonna have a hi-flow cat installed or have the cats removed and replaced with a peice of pipe. Which will be louder and how much difference?
Elder User
Joined: Oct 2002
Posts: 861
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From: Marysville Wa
Hi-Flow Cats
well of course the setup with no cats will be louder and sound better, if you are worried about emissions, i would just go with a single highflow cat to replace the duals and yes that will be louder than you already have.
