Hello, My name is Gina and I handle internet sales and questions regarding products. Please feel free to contact me with any questions pertaining to new or used units. I will reply promptly within my working hours which are Mon-Fri 9-4:30. Outside of my working hours I will reply next business day. I also manage the Grace Performance Website, which is being updated continuously. I am always open for suggestions or requests for information or products on the website. Please contact me at 810 989-9050 ext. 101 or e-mail gina@graceperformance.com