NPP in a Box = Mild to Wild in a box

NPP in A Box will turn any C6 into a Bi-mode exhaust equipped car, you provide the mufflers, I provide the rest.

If you already have NPP (bi-mode) mufflers from the factory, just purchase Mild2Wild

We now have the E-Z Tap for both LS2 and LS3 motors. This provides a much easier way to tap the vacuum. 5 min and your done as compared with trying to access the back of the intake (almost impossible) and saves hours of frustration.