This is the collector which is made by
Dynatech. These are coated with Ceramic which will keep the heat inside
the system and also keep the engine compartment cooler. The header tubes
will be coated with this later on. These are slip-on collectors which
means the header tubes will "slip in" instead of getting
welded on the collector. Notice the two tabs on the left side that are
sticking out. These are used for bolting the header tubes up so they
won't come loose. You need at least two of these to make sure the header
tubes stay in the collector so nothing comes loose. The other hole that you see in
the middle is used for either an Oxygen sensor or a Pan-E-Vac system. I
won't be using either one and Dyantech gives you a plug just in
case you don't. The size of the collector is 3" and not 3
1/2". The reason I went with the 3" is because of the
clearance problems I have between the transmission and chassis. The
3" would fit much better for what I'm doing.
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Here you can see what it looks like
from the end. The depth of the inside area where the tubes will slip in
are about 2" X 1 7/8" diameter.
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This is a 3" to 2 1/2"
reducer that again slips over the end of the collector. This makes it
easier to build an exhaust system with this setup.
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This gives you an idea of what things
look like when assembled. Later on the exhaust tubing will be welded on
the back of the reducer.
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