I have the HMF Sport.. and i'll tell ya, it has a sweet low tone, and when you get on it, she really barks, it really improved my low-mid range.. I hvae no experience with the Curtis. :thumbsup:
dizheafta said:sparks said not to run the big core in the 700r, anyways those LTE's are still floating around there.dam decisions.
I just got all of that in and installed and am very please i bought the sparks. It is one of those exhausts that not everyone will have but makes nice power IMO.CAROLINA_700R said:I ordered directly from sparks racing. If I recall, my pipe, filter and PCIII cost $1030 shipped to carolina. I called sparks last night and one of the guys told me the big core made half a horsepower more than the standard core. He also mentioned something about an ignition system coming out the really helped the 700r make more power all the way to 9000rpm. 8)