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Earlier boost pressure build with downpipes...just for your info....

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Old 12-05-2001, 11:37 PM
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Default Earlier boost pressure build with downpipes...just for your info....

the downpipe run is in green. The stock downpipe run is in blue.

<img src="http://pictureposter.audiworld.com/21977/boost_build_with_without_dps.jpg">
Old 12-05-2001, 11:43 PM
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So the a$$ dyno IS right :P
Old 12-06-2001, 01:10 AM
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which company downpipes were used?
Old 12-06-2001, 03:46 AM
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This makes sense to me. Nothing surprising. Thanks for the plot.
Old 12-06-2001, 04:47 AM
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Is this with the cats or test pipes?
Old 12-06-2001, 06:22 AM
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Default heres a much easier way to see the positive effects of reduced backpressure!

<center><img src="http://pictureposter.audiworld.com/12322/merged-runs.1.jpg"></center><p>this is a road dyno run i did on an entirely stock S4 then the same stock ecu in my car with its former configuration(AWE downpipes and cats/prototype Dual Exhaust/Sflo) thanks to DonP for merging the graphs!
Old 12-06-2001, 06:33 AM
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dude, no access to any 4-wheel dynos
Old 12-06-2001, 06:33 AM
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hell yeah...loss of low end, whatever.
Old 12-06-2001, 06:38 AM
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cats
Old 12-06-2001, 06:38 AM
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yep


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