Suspension Question/Warranty

Hey Guys, sorry if this has been talked about someplace else.

I am hoping someone can give me a little insight into this.

I have a 2020 OR and I wanted to upgrade my suspension but did not want to do like a crazy lift. A one-inch lift is fine with me. For what I use the truck for I just have no need to go taller. My 265/75/16 tire-wheel helps with that a little anyways. I just like the stance.

SO!!!! I was going to buy this guy's 2020 PRO Suspension take-offs. I called my dealer and was curious if since it is THEIR parts would it void my warranty since it's Toyotas stuff. They said since it is from a PRO and not an OR even though it's OEM parts... YES, it would void my warranty if anything happened to the PRO suspension. I asked what if I bought the PRO suspension completely NEW fresh out of the box and had toyota install them. Still since it is for a PRO it would still void the warranty.

I am curious what you guys think of this... for some reason, I feel like my dealer parts guy is wrong. haha

If that's the case then I or anyone else on this forum looking to do anything to their suspension might as well buy Icon, King, Bilstein or ANYTHING else since apparently buying their own stuff is going to void your warranty. So I guess don't waste your money on PRO/Toyota oem parts??