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turn down pipe?

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Old Oct 13, 2010 | 06:14 PM
  #1  
xjmuddigger's Avatar
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From: DIRTY SOUTH
Year: 1991
Model: Cherokee
Engine: 4.0 ho
Default turn down pipe?

would i be fine with putting a turn down pipe on after my muffler?
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Old Oct 13, 2010 | 06:19 PM
  #2  
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From: Glen Burnie, MD
Year: 1994
Model: Cherokee
Engine: 4.0 H.O. K&N, Borla headers, custom down pipe, magnaflow hi-flo cat, flowmaster to turn down tip
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yes...it will actually sound better in my opinion, the only way i have run all 3 Cherokee's i own
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Old Oct 13, 2010 | 06:20 PM
  #3  
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From: DIRTY SOUTH
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will fumes get inside the cab?
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Old Oct 13, 2010 | 06:40 PM
  #4  
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Over a year and a half running a turn down. Only time I had fumes in the cab was before I fixed the large hole in the floor above the muffler.
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Old Oct 13, 2010 | 06:45 PM
  #5  
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From: St Augustine Florida
Year: 1992
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Never ever ever ever ever ever do this... good grief people... use your heads....The exhaust MUST RUN PAST THE CAB containing passangers or you risk CO2 poison... yes yes you can die doing this... so picture this.. its winter.. you go out on trail break down.. decide to crank up jeep and run heater a few hrs to keep you warm till daylight.... YOU WILL NEVER WAKE UP.... Your jeep would have to be 100% air tight under it... and i know 90% of the jeeps have rust on floor... just a little hole and the fumes will creap inside....And in most states its against the law to do this....JUST beacause of co2 poisioning.....put a 90 on it and run out the side infront of wheel.. but do not put a turn down right on muffler and think you are going to be safe...
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Old Oct 13, 2010 | 06:54 PM
  #6  
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Originally Posted by Hommersimpson
Never ever ever ever ever ever do this... good grief people... use your heads....The exhaust MUST RUN PAST THE CAB containing passangers or you risk CO2 poison... yes yes you can die doing this... so picture this.. its winter.. you go out on trail break down.. decide to crank up jeep and run heater a few hrs to keep you warm till daylight.... YOU WILL NEVER WAKE UP.... Your jeep would have to be 100% air tight under it... and i know 90% of the jeeps have rust on floor... just a little hole and the fumes will creap inside....And in most states its against the law to do this....JUST beacause of co2 poisioning.....put a 90 on it and run out the side infront of wheel.. but do not put a turn down right on muffler and think you are going to be safe...
And then out on the trail smash it between your rocker and a rock...
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Old Oct 13, 2010 | 08:38 PM
  #7  
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Year: 1998
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Last time I looked, CO2 is what people exhale, no?
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Old Oct 13, 2010 | 08:46 PM
  #8  
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From: The Republic of TEXAS
Year: 1998
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Ran a turndown on our XJ.....no issues. Then the kiddo thought it would be cool to run a side exit.....which is quieter.
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Old Oct 13, 2010 | 08:53 PM
  #9  
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Originally Posted by djb383
Last time I looked, CO2 is what people exhale, no?
yea carbon dioxide is what we exhale(c02) and the poison is carbon monoxide
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Old Oct 13, 2010 | 08:57 PM
  #10  
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From: The Republic of TEXAS
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......but that's CO, not CO2.
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Old Oct 13, 2010 | 08:59 PM
  #11  
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From: DIRTY SOUTH
Year: 1991
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i cant remember the tech. terms,i havent takin biology since sophomore year
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Old Oct 13, 2010 | 09:02 PM
  #12  
1991Jeep_Man's Avatar
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From: Fauquier County, Virginia
Year: 1991
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I think he meant carbon monoxide
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Old Oct 14, 2010 | 12:04 AM
  #13  
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Originally Posted by Hommersimpson
Never ever ever ever ever ever do this... good grief people... use your heads....The exhaust MUST RUN PAST THE CAB containing passangers or you risk CO2 poison... yes yes you can die doing this... so picture this.. its winter.. you go out on trail break down.. decide to crank up jeep and run heater a few hrs to keep you warm till daylight.... YOU WILL NEVER WAKE UP.... Your jeep would have to be 100% air tight under it... and i know 90% of the jeeps have rust on floor... just a little hole and the fumes will creap inside....And in most states its against the law to do this....JUST beacause of co2 poisioning.....put a 90 on it and run out the side infront of wheel.. but do not put a turn down right on muffler and think you are going to be safe...
I dont know about you but my XJ is not three inchs off the ground. Even the slightest breeze is more then enough to carry exhaust fumes from under the rig.

I dont see how its any different then sitting in stop and go traffic for hours.

Side Note: Carbon Monoxide (CO) not Carbon Dioxide (Co2).
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Old Oct 14, 2010 | 12:13 AM
  #14  
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exhaust whats that? i thought cherokees are supposed to just run straight header.
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Old Oct 14, 2010 | 01:19 AM
  #15  
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If you're gonna install turn down pipe properly then I think your good with it...
Just like what djb383 did...
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