The more air you can get to your truck's engine the better and more efficiently it runs, and factory air intakes just can't stand up to the Sinister Diesel 2001-04 Duramax 6.6L cold air intake in...
Diesel engines are simple: air and fuel make power, so with a cold air intake, the more air you get into your engine, the more power you can make. The Sinister Diesel 2011-16 Powerstroke 6.7L cold...
Really give your truck a performance edge with this 7.3L Powerstroke cold air intake from Sinister Diesel. It has been designed, engineered, and fabricated in-house, so you know this cold air intake...