To ensure reliability, purchase GM part # 12578139 Engine Exhaust Manifold. It is sometimes referred to as Pontiac Exhaust Manifold. Directly from GM, genuine parts are superb with regards to quality, longevity, and fit. Every single part passed stringent quality testing, so you can be sure that it's safe, durable, and built to perform like your original parts. This part fits specific Pontiac G6 models.
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