he was talking about a cai i think,which also does go behind the turn signal.

Anyways,im very tempted to try one of these iceboxes,or fabricating one myself,does anyone have any ideas on how to maximize the effects?LT6916 said somthing about trying to sand out the interior,or smoothing out,the inside of the stock air box,what other factors would matter?what would be the BEST size for the inlet hole on the bottom of the air box be,and what would be the best diameter of the actual hose that leads to it?
I think LT6916 said somthing about the inlet of the hose being smaller than the actual hole on the bottom of the stock airbox,creating more pressure?
Anyways,i just paid for a stock air box,to play around with,if anyone has some ideas,tell me.