I've got a TurboXS RFL type BOV now that's adjusted for my 3.5psi now. I'm betting I'll have to readjust it once I turn the boost up.

Is there a dual stage BOV that would allow me to switch between 2 boost settings, or am I stuck with adding/removing washers everytime I want to switch boost levels?


2005 Ford F150 SuperCab FX4 1964 Chevrolet Impala SS 1998 CSVT: 354HP/328TQ @ 10 psi, now gone