AMS EVO IV-IX F1-I Cast Intake manifold for Stock Throttle Body
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The AMS EVO VIII/IX F1-I Intake Manifold was designed to outperform every 4G63 manifold available including our own VSR. We referenced many modern design examples and engineering studies to bring you the best intake manifold ever made for the EVO VIII/IX. After extensive testing we ended up with a manifold that makes more power than anything else available on the market! EVO's with an aftermarket turbo consistently see 40-60whp (50-70bhp at the crank) over the stock manifold!
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