Thread: Searched to the end of the internet..or "more exhaust questions"
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Old 09-27-2016, 12:28 PM   #2
tommy583
98 Arctic silver 986
 
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Location: Upstate, NY
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Yes test pipes will only delete the rear cats, so no problems with CEL's. The O2 sensors only monitor the front cats. About changing the muffler, it has been said that you can reach the top bolts without removing the bumper. Hope this helps.
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