The OEM filter in the secondary air injection pump on the 2013-2019 Lexus GX460 will degrade and clog up your system. This results in a very costly repair. Fortunately, you can easily avoid this failure in your vehicle with a very simple DIY aftermarket modification. Total investment is $20 and 10 minutes of effort. I simply purchased the filter from Amazon (link below), removed the original foam filter from the GX, and replaced it with the new filter. No more filter degrading and system clogging problem!
Amazon products used in this fix:
Air filter: amzn.to/3wGmtvA
Panel trim retainer clips: amzn.to/3WQcTkb
Attach phone holder to windshield with magnet: amzn.to/3yMJfCs