hey guys....cool down.....lets share our knowledge and help someone.....you both have a point......but lower temperature is not such a big issue coz you are running on street...a few degree doesn't make much different.....you will only notice the different when you go on track......running at a few degree lower the stock have no bad affect what so even to ur car.....the only bad thing is when ur car running at temperature lower then normal then it will coz built up of carbon in the engine and reduce the efficience of ur car....but that won't happen when you do those mods....