The one star is shared by Subimods in conjunction with the hose which had a manufacturing defect where the rubber was rolled and melted into the inside that made 3/8" flap about 1" long on the radiator end. Subimods never should have let his hose make it into the hands of a customer - shame on you. Given the fact that getting parts takes weeks now instead of days I decided not to send the hose back in favor of using utility knife to cut the flap away to get the car back on the road. I regret not taking pictures and sending the hose back because despite my trimming efforts it leaked under full temp pressure. With OEM coolant at $29/bottle and the job requiring two bottles, I resorted to tightening the hose clamp so tight that any further would have broken the clamp. This is. of course, being done while laying on the ground in a pool of anti-freeze. Suffice it to say I was pretty pissed off, otherwise it fit fine "...besides that Mrs. Lincoln, how did you like the play?"