Driver Source uses a Dyno Jet and I believe several M3s, including mine, have been dyno'd @ DS. Too bad you didn't get a base run before getting the Dinan goodies but you can always compare your runs to the other M3s to get an idea of the power you're making.
My base run was 324 whp; 352 whp with pulley, x-pipe w/HFCs and tune; 478 whp with ESS VT-575 kit.
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