Our unique two-piece modular intake manifold has been designed to be a bolt-on replacement for the anemic OEM unit, incorporating a removable plenum cover that not only allows for easy removal, porting and plenum volume changes, but can also be rotated to position the throttle body on the driver or passenger side of the engine bay. The Grams Performance & Design 1.8T Intake Manifold is the perfect complement to a lightly modified street build as well as high horsepower builds with turbo upgrades! • Modular 2pc. Removable Plenum Design • Rotating plenum allows for driver or passenger side throttle body mounting • Plenum volume of 1.85 L • Tapered high speed sliders with high speed stack inlets • Generous cast walls for porting • 72 mm throttle body opening • Lightweight 356 aluminum alloy construction •  Large port configuration • high quality • Heat seal included • Note: Cylinder heads are stamped with the three letter engine code on the front corner, near cylinder #1. If your original manifold is stamped with AEB or AGU this will not fit.