We are proud to bring back the 105mm inlet for all the “Jackshaft Drive” Magnuson TVS1900 and 2300 superchargers. The design of this inlet essentially port matches the throttle body to the supercharger inlet face and, as a result, virtually eliminates inlet turbulence.
The original dyno testing on the Left Coast 32 LSX390 (TVS2300 S/C) showed amazing results. When the stock MagnaCharger Inlet and LS7 Throttle Body was replaced with the 105mm Inlet and Nick Williams 102mm Throttle Body, the dyno results were 1016HP @ 6400RPM on 18.5 pounds of boost with 936TQ @ 4100RPM. This was an amazing gain of 96HP and 143TQ with only the inlet and throttle body change.
These are manufactured from billet aluminum in Vista, California. The billet is first “rough cut” on a 4 axis CNC and then sent through a 5 axis machine for the intricate profiles. Lots of machine time and manhours spent making these inlets in a fabulous aerospace machine shop.
These are available in raw aluminum, black powder coat and polished. High quality machined stainless pneumatic fittings are pressed into the inlet throat and ARP stainless fasteners are included.
Here’s a link to the original announcement thread from 2012 (including dyno pull video and data):
https://www.performancetrucks.net/forums/forced-induction-159/left-coast-32-back-506472/#post4976205
