What I would do is contact CPP via email directing your email to the owner, senior manager and manager of customer service and again explain your problem. Then explain how your problem and how its being handled by their company is currently being discussed on Hotrodders.com. Explain that the collective concensus is that there is a problem with their unit and perhaps the other members of this site might take their business elsewhere where their concerns are addressed better. Point out that after service is what brings customers back and word of mouth brings new customers in or keeps them away. Then explain that you probably talked to the wrong person the first time and ask who would be able to resolve this issue because you know they want to keep you as a happy returning customer. You might also point out that Hotrodders.com is the largest and busiest automotive website in the world.
Never hurts to try.