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

exhaust help what to do

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Old 10-19-2008, 08:09 PM
  #1  
tempoffroad
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Default exhaust help what to do

i am looking at ordering exhaust tomorrow and was going to get mac long tubes and cat back and just install the cat back till i can save up for the catted h pype well now i am thinking headers and midpype and stock catback and just changing the catback later. good idea? also i just had it tuned for the bottle and now would i have to tune again or just ignore the cel till i can get the o2 taken out of the system.
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Old 10-19-2008, 09:16 PM
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pcs
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the stock manifolds and the stock h-pipe are the most restrictive parts of the factory exh. if you get a catted mid pipe it souldnt give you a check light. if you have a tuner you can just turn off the rear cats if you get an o/r mid-pipe.
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Old 10-19-2008, 11:34 PM
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enrobriaffej
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alot of users on here say the stock manifolds flow pretty well considering the cost of aftermarket replacements and installation cost
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Old 11-02-2008, 08:46 PM
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they dont flow well, just swap some headers for the stock ones and you will see the difference.
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