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Stock Exhaust Manifold

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To begin the installation, we removed the intake manifold to reveal the stock exhaust manifolds. The exhaust manifolds are two-piece cast-iron units. Jeep used crack-prone tubular exhaust manifolds in '00-and-earlier TJs. In addition to the performance benefits, the stainless steel JBA headers are also much lighter than the factory cast-iron exhaust manifolds.

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