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      01-05-2009, 04:36 AM   #26
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Drives: 2007 RS35 Biturbo
Join Date: Mar 2007
Location: Laguna Niguel, CA

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Another thought

It has been our experience that if you design a rear silencer (or silencers) that use too big a section, the loss of back pressure results in a substantial loss of low-end and mid-range torque, with no benefit in the higher RPM range. In fact, the impression you are getting when you feel the car pull harder up top, may very well be that you have lost quite a bit below and your car just feels quicker when, in fact, it is no quicker than stock. A before and after dyno run should be able to confirm this for you.