GKTech - Z33 350Z/ G35 VQ35DE PLENUM SPACERAn easy way to add more torque and HP to your mighty VQ35DE is to get more air into it. For years intake plenum spacers were an easy way to do this but we were never really happy with what was available on the market. We've designed a tapered spacer to allow more air to the front cylinders which results in an improvement in both mid range torque and in top end power. A common issue when using a spacer like this is that the center bolts can either leak