Robert Bock from Unionville, TN United States
"I felt a difference with 75 injectors, same with a programmer, but the Cross-Air makes the turbo come alive - it is the best upgrade I have done."
Our Cross-Air Systems maximize and balance airflow by tapping into an existing port of the cylinder head (or two ports, in the case of the 03-07 Cummins) that are normally sealed off with a freeze plug style fittings from the factory. By splitting off the driver-side charge tube and creating additional airflow path(s) to those port(s), your cylinder head will be better supplied with air. This helps balance the engine temperatures and load at each cylinder greatly.
You can expect -
Significant drop in EGTs through better equalized airflow to all cylinders
Increased fuel mileage
Increased throttle response
and a faster turbo spool
The 3" systems can be run with your factory intake manifold, or combine with our Pusher 3" Intake Manifold - but you'll get maximum benefits upgrading to our 3.5" System with our 3.5" Mega Intake Manifold. To learn more, visit your year range here and click through the various options. Make sure to check out the FAQ tab on each page for our most common questions, where we delve into each individual product in even more detail:
CLICK HERE to view systems available for 1998.5 - 2002 24-Valve Cummins
CLICK HERE to view systems available for 2003 - 2007 24-Valve Cummins