ko4 replacement...
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Squire33 (12-31-2016)
#4
It's pretty simple really what I do hate is the o2 housing nuts. Follow the how to I know it's not the r but I helped me a lot when I installed mine.if you need any help just ask me
https://www.cobaltss.net/forums/how-...allion-287559/
https://www.cobaltss.net/forums/how-...allion-287559/