Our engineers employ CFD software to research and develop an optimized runner and bellmouth design, after many revisions to the design they have achieved the best runner shape, size, and velocity stack for the 2.5L application. Featuring aggressively sized runners that have been optimally tuned for large power increases throughout the mid-high RPM band. This runner flow and resonance tuning is a huge contributor to the overall performance of the intake manifold and is not possible to achieve on hand-welded manifolds generally available for this platform. FLOW TUNED RUNNER DESIGNīy using a cast aluminum construction manifold, our engineers are able to properly size and shape the manifold runners and velocity stacks for optimal performance. The increased internal volume is a massive improvement over the factory piece and ensures a steady supply of air for the engine. This plenum on this manifold has been generously sized and shaped to distribute airflow as evenly as possible to all 5 cylinders. With the plenum being larger than the factory, the throttle body placement is moved a small amount, which is easily plumbed to your mass airflow sensor using the included 2.5L manifold air intake kit. Through extensive research and development, this intake manifold fits with no modifications to the engine bay, vacuum system, emissions systems, fuel system, or coolant system. The Integrated Engineering 2.5L ultimate power kit has been carefully designed to fit 07K engines while retaining all of your factory components. The plenum and runner designs have been carefully optimized with computer software for maximum flow, allowing your engine to breathe easier and perform at its best. IE engineers exploit careful tuning of the intake manifold runner lengths and diameters to create a resonance effect that rams more air into the cylinders. The IE performance manifold has been designed from the bottom up to put performance first. This compromise means that there is room for significant improvement. The factory 2.5L 5 cylinder intake manifold is designed to channel air into the engine sufficiently well to meet the original horsepower targets while being cost-effective and easy to install.
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