Hi guys! I hope you all have been well and, if you live up here in the north, are off to a great start to the season! I had a Brock's Alienhead put on by a professional mechanic about 4 weeks ago. It pops now and then when decelerating. It seems to happen right after i let off the throttle. It's not all the time but pretty frequent. I have a PCV running the brocks map for my stock bike. Again a mechanic did all the work. Also the pipe is starting to yellow a bit around the edge. Not on the sides of the pipe but on the top. Is all this normal? Does it sound like the bike is tuned correctly for the exhaust?

Is all this normal?

Yes it is,,, Click here Click

Thanks Romans!