First off, they wont end up seeing this, unless they look real hard, second, this mod is no different than having a CAI on your truck. I have sold several hundred of these and noone has had any issues due to the spacer. As with all mods, the dealer needs to prove a certain part caused a problem if warranty claim is needed. Though, *same rule of thumb applies , if you think the dealer were to want to blame a certain part on a problem, you take that part off before going to the dealer. You wont have any issues. I even know a few guys who went to their mechanic to have this installed by them. This is just a bolt on spacer, and not some major permanent mod. LMK, there are lots of truck/suv owners loving these!.Jegan wrote:I'm really interested in this mod. However I am concerned about the warranty issues that might come up. As my Pathy is brand new, I will be going into the dealer for free oil changes and whatnot. Will they throw a red flag if they find this installed? Thanks for your help.