VIDEO link: http://www.metacafe.com/watch/197160...2006_bmw_330i/
Dyno test and GruppeM Intake were purchased at:
13428 Beach Ave
Marina Del Rey, CA 90292
contact: Mike @ 310.306.4060
I had a baseline dyno test done today to account for rear tire diameter changes (slight increase), and to factor out ambient temperature differences from the first dyno test outcome.
This time, baseline max wheel HP = 210.37
After intake mod., max wheel HP = 215.87 (+5.5)
At slightly above 6500 rpm, the before and after mod difference was 8.5 wHP. In fact, HP and torque increased across practically all rpm ranges. At around 2850 rpm, the torque improvement was around 9-10 ft-lbs at the wheel. Differences at the flywheel would certainly be greater.
I hate to admit this, but I was running on near 11,000 miles worth of dirty oil. After today, it's even dirtier. I can't help but wonder how better lubrication may have helped.