There is a slight catch, of course. To get the most out of your VMP high-flow inlet elbow, it's necessary to port-match your supercharger. If you aren't fully confident in your mechanical abilities, you might want to call on a professional to do the work. Ideally, you want to unbolt the supercharger, remove its rotor pack, perform the port match, clean the blower case thoroughly; then reinstall the rotor pack. So it's not a pure bolt-on, but the results are well worth the effort. This is what your blower inlet should look like after the port-matching.