Not true at all. Car overheated on both owners as well. I was told by the engine builder that dave used to have to turn on the heater to keep the engine from over heating on the highway. Its extremely consistant now with temps that were decreasing to around 170 deg. As we were cruising and would stay between 190-195 deg. while doing wot runs. Well below having any kind of heating problems. You fail to realize that the cars current engine is similar to an 05 tsx. Compression ratio, same displacement, injector size… etc. The head may flow a little 3-5 cfm better than a tsx head when the cam hits high lift but thats been accounted for. Ill let the owner share other details reguarding currend head modifications if he pleases …:sHa_hehe: