I HAVE A 2006 5.4 SCREW STOCK AS OF NOW . I HAVE Dynatech LONG TUBES COMING . WHAT WOULD BE THE BETTER OF THE SUPERCHARGERS TO USE? RELIABILITY COUNTS ALSO. ABOUT WHAT RWHP WOULD A CHARGER PRODUCE WITH A TUNE?

 

with my roush and 2lb lower pulley and custom tune and long tubes i rolled out 360 rwhp on my after market wheels and mud tires, but im sure with those dyna techs you will have a few more every truck is different fx4matt is over 400rwhp it all depends on how deep your pockets are