that flipper thing you see is the air flow meter boot and i replace them as a matter of routine, when the intake is off. it's probably rock hard and will fight you getting back on the throttle body. order the clamp and lock for it, also. consider the injector seals, etc., unless they're fresh and soft. the connectors for the vacuum lines on the throttle body are a pain to do while the intake's installed, so get them, too. check the throttle switch and make sure it's ok. some people replace them anyways, but i've only replaced a couple. but, that was when they didn't work and then the intake had to come off. good luck, chuck.