4.6L (1996-2004 Modular) Mustang Technical discussions on 1996-2004 4.6 Liter Modular Motors (2V and 4V) within.

long tube or short tube? and catted x pipe or non catted x pipe

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Old 11-29-2012, 10:20 AM
  #11  
flyboy1294
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I went with the BBK longtubes and a catted BBK x pipe. My car sounds surprisingly mild imo. I even have glasspack style mufflers and I don't have any popping at all, pretty much no raspiness, and it is only a tad louder than stock.

One thing that you need to keep in mind though, is that with longtubes you will most likely get an error code because the wiring for the O2 senors has to be extended because the bungs will be further down stream, so it throws things off and makes your PCM think there is a signal delay.

Also, my catted X pipe apparently didn't make my PCM happy. It would occasionally throw the cat inefficiency code for both banks.

I had bought a SCT tuner from American Muscle, and I was able to send them an email and get both error codes fixed. I'm not sure if my car meets emissions now, but since my state doesn't test it doesn't really matter.

Just food for thought.
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Old 11-29-2012, 06:52 PM
  #12  
nextlevelinnovations
 
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Kooks longtubes and an offroad x pipe for sure! I asked around because I want loud too!...So loud that when I start my car it spooks the horses on the farm 1/4 mile down the road from my house!..lol
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Old 11-30-2012, 08:15 AM
  #13  
Muddytoy
 
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I will be running LT's, with the BBK o/r x-pipe and the cat back will be just straight pipe... Not sure if you can get any louder!
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