Hey, Sam

i saw that with the gt86 there was a 20kw gain over stock merely with an exhaust system im wondering if u can explain exhausts, their properties and how they work with turbo'd and NA cars, the differences, also if u have an NA car with a good exhaust if u turbo that car will u need to reupgrade ec just wanna know everything exhaust related!

also, keen for that bbq so u can make my ears bleed haha ill hit u up next time i have one