The quiet track is just a screwy Cat deal, I planned on buying a non quiet track for this year but after more thought and talking to some folks about it I decided to just stick with the quiet track, first year on a stock clutched sled it did fine getting low 100's, this past season with the turbo, 115+ mph, so if the bumps are hurting performance, it can't be much. I'm sure they hog some power..how many top speed guys do u see running a quiet track lol, had I been able to find a ripsaw 2 without the quiet bumps for a reasonable price I would've bought one, but the best I found was $485 for a new one, I picked up a brand new take off ripsaw 2 quiet track for $335 so I'll gladly take that $150 savings and put it towards new studs