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Unread 05-25-2012, 11:52 AM   #31
jeepkid03
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Quote:
Originally Posted by park308 View Post
Thanks I will probably be able to afford that one I have a 91 XJ 4.0
I forget on the early XJs if the O2 sensor is behind the cat in the exhaust pipe or in the cat convertor itself. If the sensor is in the pipe downstream, you could cut the pipe right before the sensor and put in this universal cat, which is slightly cheaper.

http://performance-curve.com/225goer...ter602545.aspx

If your O2 sensor is inside the convertor, you will have to use the convertor in the previous link I posted.

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Unread 05-25-2012, 11:57 AM   #32
dagr8tim
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Quote:
Originally Posted by jeepkid03 View Post
I forget on the early XJs if the O2 sensor is behind the cat in the exhaust pipe or in the cat convertor itself. If the sensor is in the pipe downstream, you could cut the pipe right before the sensor and put in this universal cat, which is slightly cheaper.

http://performance-curve.com/225goer...ter602545.aspx

If your O2 sensor is inside the convertor, you will have to use the convertor in the previous link I posted.
IIRC, the older XJ's didn't have a 2nd O2 sensor, so you can do without that. My 97 has a 2nd O2 in the cat.
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