High Performance Intake Manifold BMW 135i/335i/535i/1M/Z4 - N54

A direct bolt-on aluminium intake manifold for the BMW N54, built to support high-horsepower builds. It replaces the restrictive, failure-prone factory plastic manifold with a high-flow aluminium design and integrated port-injection bungs for the fueling headroom big-power N54s need.

Specifications

• High-strength cast aluminium, high-flow plenum with optimized runner geometry
• Integrated top-mounted port-injection bungs
• Multiple auxiliary ports (BOV, boost reference, gauges, switches)
• Upgraded high-temperature O-rings included
• Direct bolt-on, retains factory mounting points

What it does

• Flows more air through optimized runners that improve airflow distribution across all cylinders for higher boost and top-end power.
• Adds fueling headroom via top-mounted port-injection bungs for supplemental fueling on ethanol blends and big-turbo setups.
• Won't crack like OEM, with rigid aluminium replacing the weak factory plastic manifold known to fail under boost.
• Stays expansion-ready, with extra ports for BOVs, boost gauges and future upgrades.

Build quality

Lightweight cast aluminium, far stronger than OEM plastic, with precision-machined injector bungs and top-mounted injector placement for an ideal spray angle. Resistant to heat soak and suited to ethanol (E30-E85) and race fuel. Direct bolt-on, no cutting or welding.

Compatible Models

1 Series: 135i (E82/E88)
3 Series: 335i (E90/E91/E92/E93)
5 Series: 535i (E60)
Z4: 35i (E89)
Fits all BMW models equipped with the N54 engine.