cboutfit said:I went back to cobras web site and they do not list any sounds for the 1600, you can check out some of the pipes on the 1500E and other bikes. as for the pipes changing color these I put on have full length heat shields and are doing great I only have 1500 miles on them so far as for too loud they max about 103 decibles. when going down the road they have a low purr when you open it up they roar.