LRP .28 RCR mods  Power backplate improves efficiency of the engine adding power, better idle, quicker acceleration and mileage using special Turbo air ports in the backplate to channel crankcase air fuel mixture.
Fits LRP .28 
Dynamite .28
SH .28
 
More POWER, more RPM and Better tuning! A must have for the serious RC racers who wants MAX power from there engine!