One of my 1st mods b/c I don't like driving a huge whisper fan - ended up w/ MRT Axle-back (great deal w/ military discount): https://www.shopmrt.com/2021-Ford-Bronco-MRT-Trail-Rated-Axle-Back-p/90r236.htm
Also considered AWE exhaust - some good ones here: https://www.motoroso.com/b/awe
No...
After hitting a deer in 2018, with former truck, I installed ditch lights & aimed out/down to illuminate those ditch rats. There's no wrong way - aim how you want them to function. Cheers! :D
Nice lighting upgrade - really illuminates the rear with an "Alien" look when illuminated. Also good to shed 50lbs off the rear w/ aftermarket exhaust. That's a $pendy one, but worth it's weight in sound & lightened vehicle poundage. Great job! :D
No warranty issue - we have them installed on both sides of my son's Mustang GT - never an issue. Also, unless FMC can clearly detail a catch can ruined your motor, they would't have grounds to void your warranty. I've done this same circle with my Harley - adding many upgrades w/ no problems.
No, never too late. Now I don't change oil every 3K (like my dad taught us), but I do add catch cans to vehicles as one of the 1st options & they do work. Pretty much full (can) at 7K-8K oil change cycles. Even my Harley fills up. :D
Haven't had a chance to use Costco tire shop (only member for 2-yrs now), but visiting family had issue w/ their services after buying 4-tires. Lengthy discussions w/ the shop Mgr, resulted in settling on a fair discount. As a witness, I noted their limited brand selections so...may not ever...