I was investigating the new truck intake and decided to remove the secondary filter and cut the end off the tube that goes deep into the fender. Anyone else do the stock "tube mod" That thing had to restrict air intake alittle, because of it facing the rear of the truck. Opened up the intake alittle IMHO.
After starting it up for the first time, noticed the whooooooosh of air right away. Hoping to increase hwy mpg. CAI is next, but until then I'll try this.