The Thule silver Aero roof rack system for your 2013 Infiniti EX37 consists of parts # TH711200 and # TH710401. This fits your factory-installed roof side rails.
The kayak carrier you reference, SportRack J-Style # SR5511, is fully compatible with the Thule Aero load bars.
Please note that I could not find a weight specification for your Sealution XL kayak, but the other Wilderness Systems kayaks I researched have weights as high as 87-lbs. You will want to be sure your particular kayak... view full answer...