Turbo Manifolds for Nissan Skyline R34

A turbo manifold collects the exhaust from the cylinders and delivers it to the turbine, while carrying the turbo’s weight in the hottest part of the system. Here you will find stainless steel turbo manifolds, alongside turbo gasket sets for the moment a turbo or manifold comes off, listed by engine.

Every exhaust pulse that reaches the turbine helps drive it, so runner layout and length shape how quickly the turbo builds boost. A tubular manifold can give each cylinder a smoother path than a compact cast part, but thin-walled tube heats and cools quickly. That heat cycling, plus the turbo’s mass shaking on its flange, is what usually cracks manifolds, so a turbo support and fixings that allow for expansion both matter.

The layout also decides where the downpipe, intake and wastegate can go. A ramhorn design curls the runners into a compact collector, a top-mount places the turbo high above the manifold, and a sidewinder carries it out to the side.

Use the title to choose:

• Gasket sets: listed by engine capacity, valve count and engine code, and in some cases by variant, such as a seven-bolt version. Confirm the code on the engine itself before choosing.
• What a set does: it gathers the gaskets and seals for refitting a turbo on that engine, so you are not hunting for single parts mid-job.
• Manifold layout: ramhorn, top-mount or sidewinder, each made for the engine family named in the title. Without road approval, these are competition parts for use where the rules allow.
• Material: the manifolds are stainless steel, which resists scaling at turbine-inlet temperatures far better than mild steel.
• Turbo flange: check the turbine inlet flange of your turbo and its wastegate arrangement against the manifold before fitting.

Fit new gaskets, and new studs or nuts, whenever the turbo or manifold comes off, as heat-cycled fasteners can stretch and lose clamping load. Clean the head face and check that it is flat, then tighten the fasteners in the stated sequence. Prime the turbo with clean oil through its feed before the first start, and let the engine idle while you look for leaks.

Shield nearby wiring, hoses and the brake master cylinder from the heat. Look for soot at each joint after the first few drives, because a leak before the turbine costs boost response and can scorch nearby parts.