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      12-24-2011, 06:42 PM   #51
DJ Apex
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Drives: 2006 330i
Join Date: Nov 2010
Location: Houston TX

Posts: 479
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Originally Posted by Beemw335 View Post
^ false
Reducing backpressure will affect low end power (low end torque) but will increase peak top end power (dyno numbers)

Ops car is reading really low imo
this is true i felt a huge diff in low end tq when i installed my new system but running dule gasllpacks and with my 2ndary cats back on i feel my top end is gone. Not by much but its enoufgh to tell
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