i took out my fog light(driver side) and put flexi pipe allthe way from my cone opening to the fog light and kuld notice a slight increase...not only that it sounded good..i took it out cuz it sucked up alot of crap and i didnt feel like buying any bug screen...now im pondering the idea of drilling out some large holes in the cone to suck in some more air...not sure if i want to tho...