Does anyone know what the difference on a 600 ETEC tuned pipe vs 600 SDI tuned pipe? (not the CANS) I have a 09 TNT 600 ETEC, in need of the tuned pipe. I see that they had a SDI 600 in the 08 REV XP chassis, which leads me to assume that the mounting points are very similar. But I'm not sure of how the internals of the pipes differ. Suffice it to say, I have checked parts fiche, and they are different numbers, but that doesn't always mean different parts.
