Originally Posted by Cmike2780

When did they start attaching O2 sensors to intakes? Do you mean MAF sensors?

OP, just so you know, dealers will likely try to rip off in install cost. You need to remove the bumper to install most long tube CAI such as the Gen 3's or Injens, but it's really not that difficult. Figure a 1 hour install at most. Short rams you could def do yourself. Read through the DIY section. Labor rate is around $90 an hour so its your call. Cat-back exhaust should also take about an hour to install. CBE install is also pretty easy, but it gets tough unless you have a lift.