Originally Posted by Maxwell
automatics don't have the dyno cut out, it's only the 6 speed cars that have this issue.
pretty impressive dyno, but I really don't trust them anymore, after seeing how inaccurate they can be from differing manufactures. Usually a stock srt6 is in the 250 hp range, maybe a previous owner had the ecu flashed?
Always the optimist aren't you...

Either way, even if a Dyno isn't calibrated properly, an increase of that much is still significant. Even if it is off a little, it puts out more than any other Tuner Intake out there for 1/3 the price.
I'll let Rob tell the tail in detail, as I don't have all the facts...