Easy & Very difficult
2008 GMC Sierra 1500 SLT. The cold air intake instructions were great. Installation went without a hitch. Wish I could say the same for the scoop. The instructions for installing the scoop were terrible at best. All I got was a schematic showing 3 different options & no Instructions. Autoanything couldn't help and Volant was closed. 3.5 hours later it was installed. Should have been 20 minutes.