Tundra to 500 hp? WOW! Imagine the price from Toyota for that? Not worth it other than...it wouldn't void warranties.Quite a turn of events. Please keep us posted as you supercharge your ISF. Looking forward to the results - might have to upgrade mine in the future with the Elite kit since TRD/F Sport failed us all by not producing a supercharger. Why make one for the Scion if you are not gonna support the F community with the same R&D. You can even TRD supercharge a Tundra to 500 hp and 550 tq. Sorry - just venting/rambling my frustrations.