Our Challenger Base Shaker System is functional in the way that it routes cold air to the air box if a CAI cold air intake is used. This version is not a sealed system but it will deliver plenty of cold air directly to the top of your existing CAI or can be installed directly over your stock air box as well This Kit fits the 5.7L Hemi, but can be upgraded to work with the srt8 6.1L Hemi for an additional charge. Even though, we are sure it is doable, at this point we have not yet had the chance to test fit our shaker to the 6.4L Hemi, so some custom modification may be necessary in order to bolt it up to the 6.4L. Hood is not included but we do have 2 styles that will work with our system and they are sold separately. If you are interested in our sealed system Please see below. If the sealed system or the Manifold Upgrade is purchased no air Shroud will come with the shaker. This kit is so true to the original Hemi Cuda of the early 70′s that even the OEM 1770-73 Shaker Grilles or Our brand new SRT8/Daytona Honeycomb shaker grilles (sold separately) can actually be used instead of the provided honeycomb aluminum mesh. This Shaker kit includes all mounting hardware and instructions. Because of the complexity of our shakers, all Danko shaker systems are considered special orders. This is our own unique design so you can count on a Danko quality fit and finish.