I keep gathering data...

All of this is very controversial, and lots of people whine and complain and try to find something wrong with the testing, so I MUST have absolutely conclusive information when we post anything publicly.

The exhaust testing info may not be posted at all, because it contains some very interesting info that might create situations with vendors that I'd rather avoid.
Lets just put it this way, both our test cars are now running stock mufflers after having near every system available installed onto them in the past 6 weeks.