Woke up this morning excited to go pick up my AEM Brute Force intake at a performance place about a mile from my house. Started the truck up and heard the now famous "piston slap". Only 4000 miles on my '03 4x4. Seems now I am a piston slap club member. Anyhow, installed the intake and a Gibson super truck exhaust. These are my only mods so far. I am going to dyno the truck at work on Monday. I am interested to see the hp. gains with just these two mods. I will be doing a closed hood dyno. Will try and post results Monday night.