straight pipe

new here have a ? if i drill out my muffler and my cat do i need a powercommander? 07 fz6

tex said:

new here have a ? if i drill out my muffler and my cat do i need a powercommander? 07 fz6

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In short, no, but to do it correctly, more than likely. I recently put my stock muffler back on, and noticed an immediate gain in part throttle torque and it seems to lift the front off of the ground more easily.

ill will keep that in mind