I was having a torque issue with a tuned .21 in my truggy with a dyn 053 pipe. mid was great and top end was not bad, but the low end suffered a little bit. I installed a long RB header and what a difference. I used a long header when I used to run the stock GRP 2053 pipe and that seemed to help it too. The long header and a 053 pipe work great for me in a truggy.