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Norcal
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120 Posts
Discussion Starter #1
I have 2002 wht 4.3 xtreme, precat, no cat, straight pipe, 02 simulator, ( caspers) , flowmaster. my truck still runs the same even after the simulator was put on. If the exhaust is cut back short, right after the flowmaster Is it to short becasue my truck winds out to fast or something, and it idles weird when im at stop lights.Will a longer exhaust help? what should I do?
 

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Project: Sabriel
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12,507 Posts
i dont think the length of the exhaust has anything to do with it. id get a cat and a muffler, and put those on, and reinstall the after cat O2 sensor, and see if that helps.
 
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