ok heres the sich,i had too take off my vortec plastic intake that went from my mass air flow to back of s/c ,and refab a new intake i just used metal exhaust tubing same size 3 inch ,it seems to be making my intake temps hotter.going down road im usally 20 + or - degrees obove ambient ,air to water cooler ,now im 30 ,i woul like too know if anyone has a suggestion on what type of tubing would run coolest and not hold heat as much ?or if i was too use say header wrap on it would it hold heat in or keep it from getting hotter?just an idea.any suggestions.