hey guys.. im thinkin about going up to my local performance shop and buyin a new thermostat. my car seems to run realllly good when its pretty well warmed up but not all the way. when my car is hot and warmed up, it seems to be slower. idk it may just feel that way. the place i go to though has like mr. gasket thermostat or w/e that brand is for 15 bucks.. then they have some other brand for 50.. will they both do the same job? id rather buy the 15 dollar one. also, what temperature do i get, 160*?