This 2" raised R2C insert and the ENTIRE assembly matched the dyno "hat"! It also reduced dry flow on the flowbench almost 20cfm! This is why testing and not just on the dyno, but real testing from flowbench work, to dyno, to G-tech, to butt-dyno, to track is so important. This 2" raised R2C insert will now reside under my own truck's hood. J.Rob
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