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4" exhaust: put it on, got some questions

   
Old Jun 26, 2011 | 05:12 AM
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  #11  
Highlander's Avatar
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Originally Posted by ebarresi5894
hi, i just put a 4" on my 6.5 from the downpipe back and i was wondering if anyone else had done this and had any positive or negative outcomes.

let me know please!!
What is the downpipe..
 
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Old Jun 26, 2011 | 05:35 PM
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I put a 3" downpipe just to clear the frame and 4" pipe the rest of the way. My mpg stayed the same. And no i am not driving it to hear the turbo.
 
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Old Jun 26, 2011 | 11:15 PM
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Originally Posted by Highlander
What is the downpipe..

DP is pipe from turbo down to the cat
 
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Old Jul 2, 2011 | 03:14 AM
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dont replace the down pipe, straight pipe it all the way back
you will loose back pressure and use a bit more fuel but will indeed sound good, and you will be happy- people behind you will be sad!!haha roll coal buddy!
 
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Old Jul 2, 2011 | 05:54 PM
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Originally Posted by stinkyD
dont replace the down pipe, straight pipe it all the way back
you will loose back pressure and use a bit more fuel but will indeed sound good, and you will be happy- people behind you will be sad!!haha roll coal buddy!

The DP is one of the big problems with power for 6.5 it to small and all crush
 
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