Cleaning and Tweaking Your RX8 Intake Manifold

If you've spent any time under the hood of a Series 1 or Series 2, you know the rx8 intake manifold is way more than just a hunk of plastic and aluminum sitting on top of the engine. It's actually a pretty sophisticated piece of engineering that's responsible for most of the "magic" that happens in the Renesis powerband. While piston engines usually have a fairly static intake path, the RX-8 uses a variable induction system that feels almost like a VTEC crossover when everything is working right. ...

April 29, 2026 · 7 min · Phoebe Ballantyne