Gibson dual rear exhaust

[Yukon2000xl]

Anybody try the Gibson or flowmaster dual exhausts on their Yukon XL?2000-2003? I have to change my dual cats and O2 sensors so I figured why not go dual setup since I'm changing front to rear.I don't want to drop 700$ on a dual setup if it's too much of a pain on install.This whole exhaust front to rear will be 1300$ so I only want to do it once properly .I already abandoned the headers option that would push me to 2000$


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