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Old 01-15-2013, 05:12 PM
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drivinfaster drivinfaster is offline
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Location: in the sticks you piney
 
Join Date: Nov 2007
Posts: 10,602
Mein Auto: rescued bmw's
no, cats reduce co, hc, and nox. the nox is reduced first, then the hc and co.

cats can be checked for o2 retention as well as co reduction.




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