Thinking possibly down-pipe and tune. I want something I can tune and re-flash to stock if I need to take it in for service (and get no BS from dealership). What kind of gains would I see? I guess Cobb is the big go-to. What kinda 1/4 mi et's are these things running stock/with a light tune/DP? You guys think they'd still give me **** over the aftermarket DP? Thanks for your advice.