Radium Engineering VQ35DE Fuel Rail Fitment on VQ30DET Intake Manifold

Credit: Nick Z.

The Radium Engineering VQ35DE top-feed fuel rail setup fits perfectly under the stock VQ30DET intake manifold when using 33mm top-feed injectors of your choice.

You can route the fuel lines either direction — out the front (like factory) or out the back. I’m going with -8 lines for feed and return and a -10 crossover at the rear.

The only modification needed is to trim a small bump-out section on the lower intake manifold (pictured).

I’ve already done a test fit, and everything lines up nicely.