Foster SC Mods is owned and operated by passionate and active muscle car enthusiasts with over 20 years in the business
Our Sound Kits
All our kits have undergone extensive development to give you the absolute best results possible and maximum rotor sound
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The Inspiration For Our Sound Kits
Hi, I’m Shawn Foster of FosterSCMods.com and I’m all about making cars using twin Screw Superchargers, more fun to drive.
I’ve been involved in muscle cars and Mustangs since 1994. Modifying, making them faster, more efficient, and more fun to drive has been my passion.
I love the twin screw Superchargers and partial to Whipple’s as that’s what I currently have on my own 2015 GTPP Mustang.
I’ve also had an exceptional and highly modified red 1992 LX coupe that I built up with a 363 CID forged Dart block to which I fabricated a custom (A2A) air to air intercooler system with a 2.8L H series Kenne Bell making 22 psi on the street.
I love muscle cars, especially Mustangs, making them faster, adding my own touches and most of all the people and personalities behind every one of them.
My latest project is applying sound generator technology to enhance the rotor pulses and induction sound of Twin Screw Supercharger (whine) inside the vehicle to the driver.
Newer vehicles have exceptional sound deadening qualities and the beloved whine scream of the Twin Screw Supercharger, often can not be heard inside the vehicle.
I worked on this project for the past year and have perfected a way through sound tube generator technology to increase natural whine.
These sounds are the actual sound of the rotor pulses entering into the cabin of the vehicle, so the driver can hear the scream/whine of the twin screw Supercharger.
The induction sound and whine depends on the engine loading and speed and which Stage Kit you use. The load on the motor and throttle blade angle dictate the volume and level of how loud the whine will increase.
At casual cruising speeds there is no increase in sound, but with light throttle a slight whistle whine can be heard, and at medium to heavy throttle application from 2500 rpm up whine comes on strong and builds to a scream at 6k rpm, every Twin Screw owners dream.