P90X is a very good program, I started in pretty good shape (I race road bikes/motorcycles) already however, I can tell that over the off-season my cardio/strength has improved.
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Chris 
Current: 2014 WRX Stage I + SPT / 2013 Hayabusa 202HP
Former:09 370Z 7-AT PW/Ark Type 2 exhaust/Evo R lip/TSW Nurburgring carbon
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