| Message | I have noticed in the last month or so a hand full of people wanted to know the difference going from the SZ 2.5 super splits to 3 inch expansions.  I picked two random points off the dyno.  Before mods: GT600R, 2.5 super split, 2.3 test pipes with punched out cats.  After mods: GT600R, 3 inch expansions, 3 inch test pipes.  At 3,500 RPM gained 19 whp, 31 torque, 5,000 RPM 28 whp 22 torque.  After switching to the 3 inch system, it started to make boost at the same RPM, but it spooled noticeable faster.  Just wanted to share my findings 
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