Originally Posted by Leroi
Test Vehicle: 2008 335xi E92 6AT with JB2 and no secondary cats
Interesting, when compared to round 1 results.
Why are power levels so low? I just saw the graphs and concluded it was stock. 272whp...
Originally Posted by DrewKo
But the previou test you ran showed some gains over stock, so what are we to conclude?
...that any gains from filters are statistically insignificant...?
...or that we can criticize the tester for not allowing the ECU to adapt to each filter...?