As if it doesn't get any foggier. Talked to V&H for almost 45 min. on Friday. The tech made some very good points.- SERTis for race tuning... I'm not riding to race. - Dyno Tune to make mapping with SERT right places a ton of stress on the motor and has potential to cause damage to the motor and or the chome to blue if you are not careful. How big of a deal are the dyno numbers anyway if you can confirm the system you are installing on the bike is giving you the gains you are looking for.- V&H has five dyno set ups that are in use all day everyday so they can design and build absolutely the best exhaust components and run the testing on test bikes so we don't have to break ours. I have to say, I give V&H points for that one. - Everyone knows V&H has been in the motorcycle performance business for 30 years. Fitment and quality are first class. Exactly the reason, I started looking at V&H to begin with. Fuel PAC is specifically set up for the bike and configuration of system you are using and is a straight forward installatiton that can be done at home with little or no chance of messing up. Monster Ovals are built with left ad right sides flow characteristics the same. Power duals eliminates the cats and cross over pipe is full size rounded (not flattened) to reduce restrictions to left side muffler. So back to what the Harley Tech tells me. SERT and dyno tune are HD designed, Built and tested. The fuel pac is a plug in device that simply fools the ECM. SERT is a full function programmable device that will allow mapping to my style of riding. Really, how much does that matter on a touring bike. Won't be racing and doing the interstate at 80 mph is sure to get the attention of the law and maybe a ticket or two. A long disertation, I know. Anyone have an opinion? I've pretty much settled on the V&H exhaust( power duals, monster ovals and DRAK AC. However, still undecided on the SERT vs Fuel Pac.