You seem to know a lot. I'm going to upgrade my exhaust and want to ensure I don't void the warranty. Heck, Infiniti makes a performance exhaust for her without mufflers. I like the professional look of the actual infiniti exhaust tips. I will try to source those and put them on the back of the ARK cat back exhaust with the hemholtz mufflers. What are your thoughts on that. At the same time, I will get the upgraded air exchanger and resevoir for coolant dedicated to the turbos. What are your thoughts on that. They wouldn't void the warranty. The air exchanger is Infititi products as well. is there a link to the infiniti performance parts available for the 2017 q60 red sport. I did order new rims and tyres from get your wheels. 255 zr 35 20 for the front + 22. 295 zr 30 20 for the rear. +48. Jason from get your wheels was awesome. The only guy in N. America who I called, who knew their stuff. Tyre diameter is identical. Perfect.