In the naturally aspirated gas engine world. Not with turbocharged diesels. You want the least amount of intake and exhaust restriction as possible. True story: we had a 6.0L Powerstroke F450 truck that had high EGT's and very little power. Cause was the inside of a muffler had deteriorated and partially blocked off the exhaust. Replaced the muffler and all was good again.
Doesn't matter. Restriction causes backpressure. You can't apply gas engine theory to a diesel. A gas engine needs a specific air/fuel ratio for optimal performance. Diesel engines don't. You're simply injecting fuel into compressed, hot air. The more readily available air and the easier the exhaust gasses can be expelled causes better performance. I'm done with this
Hey man. You know nothing about big truck engines at all so you are a trucker now. I don’t know what you did in the past. You are knowledgeable in gas motors but you don’t know anything about the motors in semis. It is ok to admit when you are wrong man so why not just admit it instead of digging a bigger hole. It all started with you thinking that truck engines are the size of pickup truck engines and you can run them with a 3 inch pipe. Instead of arguing about it and looking silly why not take it with a grain of salt and start researching on the internet. Learn your truck
