I have part number 15584 installed on my TRD PRO. No fitment problems and sounds great. Very droney however so be forewarned.
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How bad is the drone, and when does it occur?
I am considering getting this added and splitting it off into a dual exhaust with both exits being behind the rear tires. Any comments, insight or experiences shared would be appreciated.
Would be cool to see! Any exhaust shop can hook that up for you.
Does it still pass emissions?