so I have had my truck for about 2 years now. When I bought it the dealer had put a new catalytic converter in it. After about 8 months of driving it I started to make a noise when I accelerate. Now when I get on it right before it shifts it makes a weird crackling sound. Not sure if it is the cat converter but it sure sounds like it. Do you think I got a crap converter just so they could puch it out the door or does it sound like something else. Let me know what you think.