JP-4.5

I have driven my truck with the newly installed II Silver Bullet 62. I also at the same time had the billet DTT installed and was told to go easy for 1000 miles. It is rainy/icy/snowy today so it is not the best day to compare. The turbo seems to spool the same if not better than it did stock. I cannot tell if is just because the power is now hitting the pavement because of the DTT? The whistle can be clearly heard now while driving. I will give a little better review after driving a few days back and forth to work. All I can say is it seems to work well with only the smarty installed.