BACK IN STOCK! Another Crazy Carl's original product! Now made out of one piece of billet aluminum. The Tunnel Ram 24-P is a patented intake for the 98-02 Dodge Cummins 24V diesel engine WITH A P7100 CONVERSION. Proudly made in the USA from aircraft quality billet aluminum and pressure tested to over 200 psi.

more in production NOW, ETA early May > NEW ONE PIECE DESIGN! Another Crazy Carls original product! The Tunnel Ram 12V is our patented intake for the 91-98 Dodge Cummins 12V diesel engine. Proudly made in the USA from aircraft quality billet aluminum and pressure tested to over 200psi.

Use this dual plate with twin/dual intake horns for increased airflow. Has bungs for sensors. Proudly made in the USA from aircraft quality billet aluminum and pressure tested to over 200psi. A Crazy Carl's original product!

Another Crazy Carls original product! Say goodbye to those old rusty schabby stock bolts!! Beautiful 304 Stainless Steel hardware kit for installing one of our Tunnel Ram intakes and/or high flow air horns. This kit contains all 14 bolts needed...

Grid Intake Spacer for Dodge Cummins Trucks. Use to remove/replace the stock grid heater during warmer weather. This allows maximum airflow to pass through.

This is the square intake gasket that goes under the air horn and grid heater. Two are usually used per truck. We also have the full 3pc set if you need all of them.

This is the gasket that goes between the head and intake plate. The original is a common source of leaks and should always be changed if the plate is removed. Long gasket ONLY. This does NOT include the square gasket.

Intake Gasket kit. This set includes the long base gasket and both square upper gaskets for the grid and horn.