Hi guys, I have an 08 Streetglide with an Ness Big Sucker Air filter kit, Vance and Hines True Dual Headers, and Thundercone (Thunderheader) Slip-ons. I also have Panacea LED tail lights. I recently purchased a PCIIIUSB and selected map M818-026 for "2008 HD Touring Model *Adv. Map* True Dual headers, thundercone slip-ons, Screamin' Eagle air filter, Stock ECM, Rev Xtend enabled." I installed the map properly, however here's my problem: When on the throttle in 1st at 4000 RPM, 2nd at 4,250 RPM, or 3rd gear at 4,250 RPM (it probably happens in 4th, 5th, and 6th too, haven't gone that fast) the bike stutters, loses power, Tachometer drops, and then it backfires and starts up again. Any ideas? Powercommander.com says it has an issue with custom led lights for map 109-411. (See quote below) Applicable to 109-411 Symptom: The bike randomly cuts out or sputters while riding. If custom LED tail lights are being used, they may give off interference up the line that causes the Power Commander to loose its 12 volt reference for power and shut off. The power wire (Red wire with bullet connector terminals) will need to be relocated to a keyed, solid 12 volt power source. Would love any feedback. You guys seem very knowledgable. Thanks!