I have a 2009 Road Glide with around 12,500 miles. It came to me with 3K miles, Rhine hart exhaust, K&N high intake air cleaner & a V&H Fuel Module. Recently I had the engine light come on and the bike went into "limp" mode until I pulled over and restarted it. It ran fine until I got off the freeway and did it again after starting up from a light. The Harley dealer shop said it had a code recorded indicating an air intake/exhaust issue but they couldn't determine the cause. They cleared the codes and sent me out after talking about the V&H fuel module being the possible cause. It's been a day and it hasn't happened again but I'm beginning to think about a stage-1 flash and removing the V&H fuel module in hopes it helps. The dyno tune is just too (EDIT) expensive ($800) at the Harley dealer, which they said was the ultimate solution and I can't think this mild exhaust modification should require the dyno tune to solve the problem. Please read this... [note] A Friendly Reminder - Harley Davidson Community [/note] Any ideas?