This Nissan/Infiniti revised Skunk2 Version 2 intake manifold plenum spacer is dyno proven and road tested to outperform all other manifold plenum spacers currently being sold. I addition, it has numerous improvements and features. The Skunk2 spacer effectively increases plenum volume, lowers intake air temperatures, and allows front cylinders to breath more efficiently resulting in gains of up to 10+ hp to the wheels, and increased throttle response, and over 2MPG increase in fuel efficiency.

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