[ducv2]

Having read and re-read posts in the past on this subject, decided today was the day to run back to back tests with and without filter to see if there was any difference.
First run gave 121 rwhp and 73 ft/lbs of torque. Removing the filter gave an increase of 5 hp at 4000 rpm, 10 hp at 6000 rpm, 20 hp at 7500 rpm and 8 hp at 8500 rpm. Max power now 130 rwhp, max torque 80 ft/lbs. Unfortunately my Power Commander has snuffed it so I can't change the fuelling, but it is running weak in the mid range so there may be another 5hp hiding there, and rich at the top end so am looking for another coulpe of horses on top. Anyone want a slightly used Ramair filter