I was wondering if having custom headers fabricated for my '88 300E would be a problem. The stock headers appear to weigh nearly 200 pounds, and restrict flow considerably with the precats. Would I completely screw up the engine management by removing the precats? I want to improve the exhaust flow a bit without making the car ungodly loud, and why not remove a few pounds while at it. Just ideas... Also pondering turbocharging the engine. Let me know your thoughts. Thanks in advance.