This is a debate I'm starting because of the thread below.
Note this is NOT going to turn in to a flame fest, will not have yelling (caps lock stuck on), or nasty responses. Intelligent thoughts, questions, and responses are welcome but keep in mind this is NOT an invitation to start bashing others for trying to have a decent debate.
Sleeper Style exhuast for 420a
The question is:
What exactly is the ---STOCK--- exhaust component that mounts directly to the cylinder head prior to the downpipe and catalytic convertor? Is it an exhaust manifold or an exhaust header?
I have always been under the impression that the component is an exhaust manifold because:
1. it's stock (not ALWAYS stock on all vehicles I know)
2. It's got very short runners leaving the cylinder head that join VERY quickly at a central point.
3. Does not have long runners that aid in a smooth flow of exhaust working it's way down to a 4-2 collector then a 2-1 main collector, nor does it have long runners that join at a larger 4-1 collector.
4. The chrysler parts catalog as well as the service manuals refer to it as an exhaust manifold.
5. It's composed of bulky cast iron with a rather crude outer structure and not alot of performance characteristics on the inside to promote much more than a quiet exhaust. Also, most of the pipe work incorporated with it is to promote a clean burn, fuel economy and insure proper fitment in the engine bay.
So... if you have any thoughts on this matter feel free to pipe up and we can discuss this. Remember the first paragraph though.