Stacking Pressure Boxes
 

ok so i just bought a striker II box for the set-up below (predator is off now & the mileage max is on ) so with the current set-up would i be able to continue to run the mileage max or predator on the tow tune without any worries? How would i go about setting them up (stacking )?

For the guys who are running them what setting have you seen the best MPG`s on? Should i be running a RP gauge w/ this box as well? Thanks in advance for any help.

Yes, run a rail pressure gauge. The Striker II raises rail pressure along with the Mileage Max.