Please help! I did the straight up- pipe with the egr cooler plug from River city diesel. When I was finished I test drove it. Ran it hard and had no problems. Today I got in it and was driving to home depot. At around 10 pounds of boost and up I hear a real bad boost pressure leak like right at the back of the motor from inside the truck. I get home pull the right inner fender out. But I can not seem to be able to find where it is coming from. if any one could help i would really appreciate it. Because i need the truck for tomorrow. Thank You!!