Does any one out there have any dyno information on these hauck howlers. I have been searching everywhere to find someone who compaired these pipes and there is nothing. Everyone knows that the howlers are full race pipes and turn 10 000 + RPM but what is the HP gains and how do they compaire in the Torque gains. Is the HP curve and torque curve really steep and peeky inwhich makes it harder to adjust and more sensitive to track conditions expecially running hard packed snow?????? Could any one help me on this. I am dying to try a set of howler pipes but yet i am a bit nervous due to the lack of information on them. I seen some post where people have said they have had no luck with howlers and more success with regular quads and then others have said that they have had huge success. Do the howlers only work with certain porting jobs???????. Will they only work on prostock setups???? Need a lot of clarifiction. Could someone help.:bash1: