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Swapping on an aftermarket aluminum intake manifold is one of the most popular engine upgrades of all time. It’s easy, it’s cheap, and the bottom line is, it works! Not only does aluminum dissipate heat faster and more efficiently than cast iron, but it will also save you about 25 lbs. in dead weight! The new aftermarket manifolds have an improved plenum design and will far outflow a factory cast-iron piece. In fact, most are dyno-tested and proven to yield encouraging power and torque increases throughout your entire powerband. Now how can you beat that for a couple hundred bucks?