LT4 Supercharger Snout Porting

FAS LT4 Supercharger Snout Porting is a mail‑in service that reworks the inlet of your factory LT4 supercharger to move more air, make more power, and keep the car happy at higher boost. The snout is ported and hand‑finished in‑house, focusing on smoothing the airflow path, removing sharp transitions, and opening up choke points that hold the LT4 back as you add pulley, cam, exhaust, and fuel upgrades. The result is a more efficient blower that comes into boost quicker, pulls harder through the entire RPM range, and maintains repeatable performance on the street, strip, or road course without giving up OEM fitment or drivability. You send in your LT4 snout, it is cleaned, inspected, ported, and returned ready to bolt back on, giving you a straightforward way to unlock extra horsepower and headroom from the stock supercharger before stepping up to a full blower change.