[purplept]

I'm in agreement with the lack of hp increases with a throttle body spacer on a PT but I purchased one anyways just to see for myself. I thought maybe, there might have been a slight increase in low rpm/torque but not certain. I did like the occasional whistling noise that made the engine sound like it could have had a supercharger installed. Also, I thought I got a little better mpg but can't say for certain because I did other mods at the same time, i.e., header, dual exhaust, air intake. My throttle body spacer is for sale, see: Helix Throttle body in the Classifieds section of this forum.