So I did my first mods a week ago. P2r throttle body spacer with thermo gasket and tb coolant bypass. Fairly easy for never doing any mods before. Can't say I've noticed any performance gains, and sense throttle response is actually a little worse... Maybe it's in my head. But my fuel economy is about 2 mpg less than usual. Driving habits, conditions, or routes haven't changed. I'm 99.9% positive I installed the tb spacer correctly and dont hear any whistling or hear or feel an air from tb either. Anyone else experience lower fuel economy?

 

why two threads?

 

So he can get told the same thing twice?