What's up guy's! I'm not new to Nissan but new to the Titan. I just bought a 2013 Titan 4x4 on Monday. The only mods so far are a 3" lift on 33" Nitto Trail Grapplers and an Airaid MXP cia. Borla and BDGT are next. I have read a lot of good info this week on here and wanted to join the addiction!