kind of confused....want to replace housing and thermostat....went to ebay and everything for the yj is about 40. ( high flow)....called a local advanced auto and they said the housing was about 10.00.....why would there be such a difference in price? is the one at the store cheaply made? dont want to put something in it that leaks a week later and doesnt perform as it should! thanks guys...oh p.s. im putting a 195 thermostat in it after reading some other posts!