I have been using Moroso Ultra 40 wires on my cars for years as I make up my own wires. I know some guys get deals on a certain manufacture wires but I’m not one to ask for discounts or pay for discounts or free sets given out to others. I run my Moroso wires for around 7 years then I change them out. I don’t see a difference from day one to the end of use. I have two new sets setting here ready to go on.