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Company Representative of RPI Power
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I haven't done one of these tests in a while but a customer called and wanted to do dyno runs before and after his ram air kit install. The car was a 2008 M5 6spd. I did runs at 20 seconds apart with the hood closed. Ram air kit was installed while the car was on the dyno and no fans were used to cool the car while the intake was installed. All runs were with the hood closed and ATS were not moved.

 

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2,149 Posts
Was the stock setup with charcoal filters aswell?
Would have been nice to see charcoal filter delete dyno, then charcoal delete + bmc filter, and then with scoops..
Also would have been nice to see some IAT results to make sure each run was consistent and started at the same temps, to see a true delta.
These results can be from charcoal delete alone, or from a IAT temp swing.. Wish there was more data.
 
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