| Greg @ SZ has always stated that the torque / power curve is better with the divorced pipe due to the earlier spool. I have to think that the top end is impacted ( I have 691 rwhp on race gas ) ..however, Greg @ SZ states that the exhaust velocity is faster on the divorces type. I think the SZ expansion divorced DP is probably the best of both worlds. 
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 690 rwhp dyno View Me! Disclaimer : Not Safe For Work !
 Kid :" Those old guys drive that way ?"  Witness : "Yeah, I rode behind them at ZNationals 2010 on these back roads leaving the track day and they were foot in. They ran into the curves w/no brakes and didn't lift!"   - Hampton Inn parking lot at ZNationals 2011 - |