Pipe behind the muffler, how much does it matter?
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Junior User
Joined: Apr 2003
Posts: 73
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From: Coos Bay, Oregon
Pipe behind the muffler, how much does it matter?
I'm thinking of tinkering with my exhaust a little more. Right now its a single 2.5" pipe, into a Magnaflow 5x8x18 muffler, exiting in the stock location with a 3.5" tip. It also has a Walker downpipe installed, which eliminated the "pre-heater" cat, and the other original cat was removed long, long ago.
What I would like to do is try and get a slightly deeper tone out of it. Also, the tail pipe was crush-bent to go over the axle, and it has some pretty severe bends in it, some look like they neck the pipe down to under 2"! So, I figure to kill two birds with one stone, I am looking at installing a 3" mandrel bent section of tail pipe from Magnaflow (that is built to fit 87-96 Ford trucks), and topping it off with a 4" tip. I'm thinking, for one, the larger diameter pipe & tip might change the tone a little, and the mandrel bends will be a lot nicer than the crush-bent pipe it has now.
So, what do you think? Would it change the sound much? Would there be any adverse effects from using a 3" tail pipe when all the pipe before the muffler is 2.5"? I would assume that anything behind the muffler wouldn't matter too much, just so long as its not restrictive.
What I would like to do is try and get a slightly deeper tone out of it. Also, the tail pipe was crush-bent to go over the axle, and it has some pretty severe bends in it, some look like they neck the pipe down to under 2"! So, I figure to kill two birds with one stone, I am looking at installing a 3" mandrel bent section of tail pipe from Magnaflow (that is built to fit 87-96 Ford trucks), and topping it off with a 4" tip. I'm thinking, for one, the larger diameter pipe & tip might change the tone a little, and the mandrel bends will be a lot nicer than the crush-bent pipe it has now.
So, what do you think? Would it change the sound much? Would there be any adverse effects from using a 3" tail pipe when all the pipe before the muffler is 2.5"? I would assume that anything behind the muffler wouldn't matter too much, just so long as its not restrictive.
Senior User
Joined: Feb 2004
Posts: 325
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From: WEST TENN.
Using the mandrel bent pipe will give it better flow, as for sound yes the largewr pipe will resonate a deeper tone, as will the 4 inch tip, should give it a healthy rumble. The larger pipe after the muffler should be okay.
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