Long tune headers 02 sims?

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JExpress14

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I was curious as to if any of you guys are running longtubes without cats and how you get around it? I know you can buy 02 sims and extensions etc, but I wanted to know if you guys use a specific one fpr our trucks. Any help would be greatly appreciated, thanks.
 

kg93

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i just have the stock 02s in bungs with a tune and im good. no extensions or anything special
 

jwheeler

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I have made a few sets by using spark plug non-foulers for cars that have bad cats. They are much cheaper than a premade spacer but take a little work. For my ram though with headers, I just went with a tune to eliminate the rear O2 codes.


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Hemi450hp

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Any custom tuner can disable the codes for the rear o2 sensors, so no non foulers or o2 sims are needed.
 
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JExpress14

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Those who have the sensors turned off via tune. What do you guys do when it comes time for inspection? I will inspect my own vehicles, but there is nothing I can do if it does obd II and the sensors are turned off via tune it will fail.
 

Hemi450hp

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The sensors are not turned off. They still read active in the computer, but the code is turned off.
 
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JExpress14

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Gotcha so it still thinks they are happy and getting good readings and everything is fine.
 

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