I stand corrected, but still stand by my convictions that your comparing two different engines and not condemn a product before it is even tested on a similar engine as those MSDS dynos are from.
All I know is, more than 18 people plopped down that $1700 for the CP-e headers and that is 15-16 more than the MSDS headers which have available for two years IIRC. Production starts next week on the Mazda6 batch, hopefully it won't effect them working with 69Boss302.
