I just installed my pro moto billet endcap with the spark arrestor and quiet core options and just wanted to share that it is a well made and very functional part. I can appease the sound nazis and keep from burning the forests down or I can go moto the exact same way I could with the stock exhaust by taking 5 minutes to change it. It looks great too. I am sure that an aftermarket pipe would be nice and add a little ooomph, but for $160 you cannot beat this setup. If anyone is considering it, I can say that it is well worth the money and also very easy to install.