So on an M6, I'd need a tune after this mod, or would I be ok with just the
Hypertech calibrator ?
I guess 4.10's would probably void my powertrain warranty anyway, right?
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Placed order: 02.25.2010
Took delivery: 04.06.2010
Halltech Yellowjacket CAI, Mike Norris catch can, VMAX PTB, JBA Shorty headers Hi Flow cats & axleback, Magnaflow Tru X pipe, Eibach F&R sway bars & end links
