I run booties. Car runs great. Took a little extra tweaking to dial in the Webers but no big deal. My engine builder who is one of the best around says it's not worth the risk running without filters with all the dirt, pebbles, sand (I live on Cape Cod), and other airborne contaminants possibly getting sucked into the engine and causing some real problems. He also said that unfiltered air will dust the motor after a while and diminish engine life. Just my two cents.
