By far, the best addition to my Whipple Supercharger since it was installed. Brings the fun factor to another level. Every time I hit the throttle, my car sings. It’s really hard not to smile. Driving is a visceral deal. You feel it with the Whipple and can hear it with Foster’s sound tube mod. If you’re looking for that whine, this is the kit. Easy to install and a must have to complete your supercharged experience.