1. The item being described are cast iron exhaust manifolds for Pontiac Trans Am models produced between 1974 and 1979.

2. These manifolds were originally designed by General Motors (GM) specifically for these F-body Pontiac vehicles, including the Trans AM models equipped with either a 400 or 455 cubic inch engine.

3. The parts are cast from high-quality iron to match their original counterparts in both appearance and performance.

4. OER is licensed by GM as an official restoration parts manufacturer, ensuring that every part meets exacting standards of quality and authenticity.

5. These manifolds feature part numbers and date codes cast directly into them, exactly like the originals were produced from General Motors' factories during this time period.

6. The use of authentic materials such as cast iron ensures a truly original look and feel under the hood that cannot be replicated by cheaper alternatives made with modern materials or manufacturing processes.

7. These exhaust manifols are designed to bolt up directly into their factory mounting points without any modifications being necessary, making them an ideal choice for anyone looking to restore their classic Pontiac Trans AM back to its former glory.

8. OER is committed to providing only the highest quality restoration parts available on today's marketplaces and stands behind every product they sell with a satisfaction guarantee that ensures customer satisfaction or your money will be fully refunded.

9. For those who demand nothing less than absolute authenticity in their classic car parts, look no further than OER - where tradition meets innovation to bring you the very best reproduction components available for restoring your vintage ride back to its former glory days on the road once again!

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