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Originally Posted by Bavarian Motorist
I decided I am gonna buy this and then immediately go to a dyno test and report the results.
If it's minimal gain, I'll return it  |
Dyno numbers can be influenced by everything from calibration variation to the weather to barametric pressure to how tightly the car is held down to tire pressure. If you can't do tests back to back within a few hours on a calm day, you'd need to do some pretty extensive ongoing testing to get answers for sure. Or you'd test two identical unmodified cars at the same time, then modify one and retest them both to get an idea of the variation due to environment/calibration.