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Unread 08-10-2013, 07:45 PM   #1
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2007 XK Commander 
Join Date: Jun 2013
Location: Waterford, Michigan
Posts: 23
High flow cats worth it/good idea?

I've got an 07 XK with a CAI and Hypertech Max Energy programmer. I'm getting ready to do the exhaust and wondered about putting some high flow cats in. I've heard they can cause a CEL? Just wanted to know what to do since I'll be in there.

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Unread 08-11-2013, 05:46 AM   #2
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Join Date: May 2013
Location: Syracuse, New York
Posts: 28
I've heard that WK's aren't a fan of aftermarket cats. I'd personally leave them alone.
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