What FD7683 said was always true of Honda engines that were produced in early 90's through the early 2000s. They lost low-end even maybe mid range torque(if we are speaking normail mid-range for a honda which would be around 3250 to 3750 depending on the engines red line of couse. SI's and Type-R's redline slightly above 8k rpm. and that is why you don't need to worry about torgue so much with the all motor engines from honda during those years and the same prinicple shoul since HP and Lbs-ft of torque meet at 5250rpm on any dyno, and then torque will start dropping off as HP rising. Provided you are not testing a vehicle that for that is so old its obd 1Mid and high end torque will increase but you do have to push it hard to feel it. Low end torque will decrease due to less back pressure I think. I have yet to install one on my daily 06 EX.