I am in the process of a build on my 2015 Scat Pack Challenger and we are running into some issues with 'limp mode'.. I have a lot of custom parts and 2nd hand parts from other builds.. The gentlemen that answered my calls this morning was pleasant and helpful.. He answered all of my questions and told me not to hesitate to contact him with anymore questions. As a result I purchased their 92mm Arrington throttle body.. He was straight forward with shipping and suggestions considering my location in Florida.. I will report back once I receive the product and get it installed..