2013-2018 Cummins 6.7L Screamer Turbo Manifold Package (1045871) Duramax By increasing the tappet diameter

By increasing the tappet diameter from the older 1

For that old school trucker feel this switch is ideal for activating your exhaust brake of other accessories

If you are installing new injectors (stock or aftermarket)

This is ideal for installation on the rear side of the vehicle radiator

and quick spool up making it the perfect choice for daily driving and heavy towing

2013-2018 Cummins 6.7L Screamer Turbo Manifold Package (1045871) Duramax By increasing the tappet diameterA drop in stock installation, stock looking replacement that is anything but stock! The larger Ballistic Billet compressor wheel and our new exclusive Low MOI QST turbine wheel results in reduced backpressure, quicker response, increased efficiency and increased turbine flow compared to the competition. This results in increased maximum potential power output, right up to 690 horsepower with supporting modifications. No extra parts to install, just