and they have the same everything else in the motor? 15 hp for 1000 bucks today, and I bet I could get 15 hp by bolting on a used Eddy RPM and 750 dp, probably getting the pair for 400 buck. Not to mention ease of tuning, this is my point. Love 6 packs! Cool looking! Not the most bang for the buck. Who can argue, other than just to argue...