kenholl
Its my side of the garage
the oem intake and filter are good till you are hitting 500hp. I have heard from several techs using aftermarket intakes is the easiest way to void a turbo warranty claim. On the exhaust side keeping the cat "installed" when in the shop has prevented dealer issues. It does depend on the dealerships in your area, some don't care others won't even look at your truck.
x2!