I bought the bike with the exhaust on it. Ive only had it for a few weeks but dont know if the exhaust was blue when i bought it or not. Its blue right where it comes out from the plastics near the footpeg. Is this common for this exhaust? Ive seen other pictures of similar exhausts that are not blue. The bike has a power commander in it and has been tuned but i guess its possible i have a lean situation really heating up the exhaust. Let me know!