Dyno Comparison -- Pontiac Ram Air Filter Grate On vs. Off

Dyno graph of all mods up to the Borla exhaust with filter grate on vs. off.

Here, the dyno shows a .4 horsepower but -1.6 ft/lbs torque difference between having the filter grate on and off. This goes to show that the filter grate may hinder horsepower a very slight amount, but the loss in torque does not warrant removing it.