Here, the dyno shows a 2.4 horsepower and 2.1 ft/lbs torque difference
between the stock throttle body and a TPIS throttle body air foil. The average here gained 5.3 horsepower!
and 1.9 ft/lbs torque. Check out the Dynojet Race Routine between the stock vehicle, the stock
throttle body and the TPIS throttle body air foil.
I picked up this used TPIS air foil for under $30, and you can see what it gave
me. Not much. But then again, at $15 per hp, its not that bad. 2hp is just not enough to feel on the street. I
wonder how much this would help once I get the supercharger on?