I previously wrote a review for scoot tuning and gave them 3 stars. I am updating the site to 4 stars. Casey did a bit of research and got me what i wanted as well as giving me options for a few different set ups. He was always very professional and very nice to me over the phone. there was a delay in receiving my parts but that was due to christmas vacation for the office. I received my parts and installed them into my scooter and they work very well, better than expected. I will not hesitate to use this site again. If you are looking for performance scooter parts and don't really know what you need, give scoot tuning a call and they will help you out.