Does anyone know what the rubber flaps that hang down on each side of the airbox are for. The manual just calls them rubber covers. I just finished installing Dan Kyle block off plates and a flapper removal and I was wondering about those rubber covers. Also note to anyone planning to do the complete flapper removal on the SP 2 the solenoid is in front of the left radiator not behind the right as the online instructions show. RC51.org is a fabulous site no criticism implied or intended, he probably used an SSP1.