V6 (1994-2004) Mustangs Technical discussions on the 3.8L and 3.9L V6 torque monsters

Muffler Question.

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Old Oct 4, 2009 | 09:48 PM
  #1  
MustangLouver's Avatar
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Default Muffler Question.

Does the stock muffler just bolt on? I havent checked it and I was jsut wondering, because I don't want to go outside and look.
Old Oct 4, 2009 | 10:00 PM
  #2  
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lazy...I don't remember though I don't think so just a guess.
Old Oct 4, 2009 | 10:47 PM
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The catback bolts in as a complete unit
Old Oct 5, 2009 | 10:20 AM
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is there any way to get the whole catback out without cuting it, I unbolted it all, and I didn't want to cut it out from around the axle also is it dangerous to drive it in the rain without a catback on t? I need to get this one off, drive about 20 miles to my wedler and get new a new muffler welded in. Also, how big is the stock piping. Thanks.

Last edited by MustangLouver; Oct 5, 2009 at 10:23 AM.
Old Oct 5, 2009 | 10:31 AM
  #5  
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If your only getting one drive to him with and have him cut the old one out and weld the new one in. Stock piping I believe is 2 or 2.25 inches I'm not positive.
Old Oct 5, 2009 | 10:53 AM
  #6  
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Originally Posted by Shaunmac9128
If your only getting one drive to him with and have him cut the old one out and weld the new one in. Stock piping I believe is 2 or 2.25 inches I'm not positive.
Im thinking 2.25 but not positive. I was hoping I could save the old pipe in case i go back to stock. I might be picking up a set of x pipes soon but im still not sure..

EDIT: I called my wedler and told him i couldn't come over there today. I gotta be at work in 3 hrs, and wanna make sure i have time. Autozone and advance were out of piping, i ordered some, its 2.25" and i jut bought some straight pipe, my grandpa is just gonna bend it for me, and he knows how to weld, he said he would do it for me instead of the other guy.

Last edited by MustangLouver; Oct 5, 2009 at 11:24 AM.
Old Oct 5, 2009 | 11:43 AM
  #7  
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Oh I didn't know you were going aftermarket, I thought you were just getting one welded in. What mufflers did you get?
Old Oct 5, 2009 | 11:47 AM
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Originally Posted by Shaunmac9128
Oh I didn't know you were going aftermarket, I thought you were just getting one welded in. What mufflers did you get?
Flow 40s, and Yea, im getting new pipes too, and probably an x pipe to go duals, if i do that, ill have to get another 40. Only thing that will be left is to get lt headers, but, i dont wanna spend any more money now. About to go hook everything back up..

http://charlotte.craigslist.org/pts/1405581840.html

those will fit on my v6 right? GT x pipes are the same?

Last edited by MustangLouver; Oct 5, 2009 at 11:56 AM.
Old Oct 5, 2009 | 02:04 PM
  #9  
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You have to take out the rear end to egt it out, they're installed before the axle at the factory.
Old Oct 5, 2009 | 08:48 PM
  #10  
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yea u gotta cut it to get stock off. and no it wont hurt if u run without your cat back on. sounds kinda cool actually, i ran that way for about a month.
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