Originally Posted by
Mykneesbehurtin
Look at where the torque starts to come in, if not until 2500 plus you may want to rethink. Have him look at the 465 first and see what he thinks. My dyno guy had never installed a 465 either, then after doing mine he said he would recommend it for trikes. But on the other hand, you must have faith in the guy tuning it. Good luck with your choice. The Fullsac Sportpipe head pipe claimed to make better low-end torque. So maybe it was the combo of the two, who knows.