Hello
Hello,
What other mods do you have?
How far do you plan on going as far as HP?
If you don't have any mods you should spend your dough in other areas like Exhaust, and Intake mods.
I have the MPII Blower and can say that it was worth the Bones but I also have the following mods.
76mm MAF, SCP 3" intake, 70mm TB, ported and difused ESM Plenum, 1.25" ESM raised SC top, 255lph fuel pump, underdrive pulleys, ESM quickchange SC pulley set, IC fan, and last but not least Dual 2.5" to 3" Magnaflow exhaust.
If you have no mods go with a good free flowing exhaust.
You will lose some lower end grunt for now but gain that back with a few mods, also your head gaskets will last longer. You will also need a free flowing exhaust when you decide to pile on the mods.
Laterz,
D Rainer