The new ATS Ported Shroud Compressor Housing is designed to increase your turbo life by eliminating the damaging effect of compressor surge. Anyone who has ever towed with a 1999 1/2 or newer Powerstroke has undoubtedly experienced compressor surge and flutter which occurs between 1800–2200 rpm. When performance products are added to increase horsepower, the compressor wheel accelerates faster and compressor surge and flutter becomes more apparent and damaging.

Another great benefit of the ATS Ported Shroud is a quieter ride. An opening wastegate, a bad torque converter, or a loose cover plate are a few of the excuses which people mistake for the compressor surge noise. Forget about it...with the ATS Ported Shroud.

The ATS ported shroud compressor housing is designed with a 4” Intake and exclusive inducer bleed ring. Utilizing a 4” intake results in a 13% increase in choke flow, allowing more air to flow into the compressor wheel. Inducer bleed acts to broaden the range of the compressor wheel, smooth out air flow, and eliminate turbo compressor surge.

Note that the stock compressor housing only has a 3” Intake.