Garbage product! Warranty not honored!
I bought a Sinister Diesel IDM. Less than 2,000 miles later, I was stranded and incurred a $1700 bill to have the truck towed and the IDM replaced. Sinister would not honor the warranty because I didn’t have the diagnosis soon enough! When I called, Sinister said this happens and didn’t apologize or offer me anything except 15% off! I have now removed all their garbage from my truck and will never buy another junk product from them. Save yourself and avoid this company entirely! Poor products and no warranty = fraudsters.