Sinister Diesel

The Sinister Diesel intake elbow for the 5.9L Cummins 12V replaces the restrictive stock piping on your for the Dodge Truck with larger diameter CNC mandrel bent aluminum tubing. The increased...

The Sinister Diesel intake elbow for the 5.9L Cummins replaces the restrictive stock piping on your for the Dodge Truck with larger diameter CNC mandrel bent aluminum tubing. The increased diameter...

The Sinister Diesel 6.0L Power Stroke intake elbow replaces the restrictive stock piping on your Ford F-250, F-350 Super Duty or Excursion 6.0 with larger diameter CNC mandrel-bent aluminum tubing...

Make a strong statement with this 6.4L Powerstroke cold air intake from Sinister Diesel. It looks great under your hood, thanks to the Signature Sinister Blue powder coat. Even more importantly, this...

This intake retains your factory air intake bootQuicken your truck's turbo spool-up and throttle response with this 6.7L Cummins cold air intake from Sinister Diesel. It's been designed, engineered,...

The new Sinister Diesel Hexagon 6.0 Intake Elbow for replaces the restrictive stock piping on your Ford F-250, F-350 Super Duty or Excursion 6.0 with larger diameter precision-cut hand-fabricated...

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...

Quicken your truck's turbo spool-up and throttle response with this 6.7L Cummins cold air intake from Sinister Diesel. It's been designed, engineered, and fabricated all in-house, so you're getting a...

Add durability and longevity to your Duramax's air system. Our Sinister Diesel Intake horn is designed to increase air flow, using 3.5", mandrel bent aluminum tubing. Precision designed, a machined...

The more air you can get to your Duramax engine, the better and more efficiently it runs. Factory air intakes just can't stand up to the Sinister Diesel Duramax 6.6L LML cold air intake (CAI) in this...

The Sinister Diesel intake elbow for the 5.9L Cummins replaces the restrictive stock piping on your for the Dodge Truck with larger diameter CNC mandrel bent aluminum tubing. The increased diameter...

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 Powerstroke 6.7L cold air intake...