Jegs O/R pipe

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Bigrich

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So if one was to run the Jegs off-road Y pipe, would you need to tune due to no cats? Or would the O2 sensors be fine reading without them in place? Trying to decide to either go back with factory cats or pick up a Jegs and slap it on. But don’t want to have to wire this, tune that, etc.
 

Joe Dirte

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So if one was to run the Jegs off-road Y pipe, would you need to tune due to no cats? Or would the O2 sensors be fine reading without them in place? Trying to decide to either go back with factory cats or pick up a Jegs and slap it on. But don’t want to have to wire this, tune that, etc.
Can truck the rear o2s or they need tuned out. Otherwise it'll run like crap.
 

b454rat

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no it won't run like crap. I did this twice to my yukon and Tahoe. It made no difference. I used spark plug non-foulers and the check engine light never came on. Wish they were bigger than 2.25" tho...
 
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