Borla 140659 Catback for 2016-2017 installed on a 2018 Explorer Sport. The 16-17's have built-in tips in the rear valence. The 2018 has dual-tips on the the rear mufflers. The 2018 catback kit is also more expensive. I was able to find a used 140659 on Ebay and had it installed on my 2018. Added 4" dual tips, as the 140659 does not come with tips.