I have noticed that my engine is making more noise than it use to. It does it usually in the mid rpm's w/without the chip on. I've got 94,000 on it now and had 76,000 when i bought it last April, so i have driven a bit. I have had an edge on my truck the majority of the time. I have done some drag racing with it and towed lightly. I just wondered if anyone could give me some ideas. I already had to replace the trans so i hope the engine isn't going too.