Hello every one. Up for sale I have a used HKS EVC 4 EBC. The unit is in perfect working order. It was in my car until I went to a full stand alone set up. I had all the related boost controller parts removed professionally. Cosmetically it shows wear and tear from being installed using glue and Velcro strips. However this has no affect on its functionality. Please feel free to email any questions you may have. 200obo Thanks.