As far as to much carbon, what about the cataltic converter? Mine has 200,000 on it and I did a h22a swap recently, I feel that it might be clogged. My exhaust tips before my swap were all black on the ends, and I cleaned it up some but its hard to get off. Is my cat junked up? If so whats the best way to solve that? I do not have to have one where I live, should I cut it out? Get a hi flow cat?


Thanks