I have Cobra speedster longs on my vn900lt. The sound is great, for me. I ride with H-D´s and before I had the pipes installed. The bike really sounded like, well you know what I mean. I have at all times now, the sound I used to have at the end of first and second gears. If that makes sense? I asked if I needed to install something like the power commander or the FI2000 fuel processor. But I was told there was no need unless I really wanted to spend the money. In my opinion, the Cobra pipes are worth every penny. Not to mention the perma-grin I have had to deal with since the first time I fired it up.