Here are the results of the first pull.
The dyno used was MD-AWD-500-SE by Mustang Dynamometer.
Mustang Dynamometer >>> MD-AWD-500-SE
There were no traction control issues, because the rollers of the Mustang AWD dyno are physically linked together. Testing was done in 3rd gear. The peak hp on the first pull was to the calculated 320-330 range. 325/451 = 29% drivetrain loss, (If engine is perfectly healthy). The second pull (not shown) had evidence of heat soak. (Down on power by 10%) Hopefully not many other variables swayed the results of this test. It's great to see a vehicle equipped with aftermarket parts work as advertised 90,000 miles after installation.
It would be great to see Steve Dinan authorize a "smaller pulley/aftercooler/gapped down plugs/engine software tune" kit. This SAV won't be happy when the new X5 M hits the streets.
edit: also, the factory exhaust is installed.