Opel Z20LE Billet Intake Manifold
The ultimate Kakarakis Performance Billet Intake Manifold for Opel Z20LE series engines. Featuring a high-velocity side-feed plenum design engineered to completely solve the notorious 4th cylinder lean problem, this premium CNC-machined aluminum manifold is built exclusively for extreme high-boost Turbo applications, guaranteeing 100% equal airflow across all cylinders. Includes a custom high-flow billet fuel rail, supports 4-port water-methanol/nitrous injection, and is available with 70mm or 75mm throttle body flange options.
Description
The factory OEM intake manifold suffers from poor airflow geometry, creating a highly dangerous restriction that leads to the notorious 4th cylinder lean problem, which frequently causes critical engine failure on high-horsepower Z20LE builds. Our innovative side-feed plenum engineering completely fixes this structural flaw, ensuring a flawless 100% equal airflow distribution and uniform fuel mixture to every single intake port. This perfect balance guarantees safe, optimized power delivery across the entire powerband, keeping your engine protected even under extreme racing loads.
To support your upgraded high-horsepower fueling demands, this manifold comes complete with a custom-matched, high-flow billet fuel rail designed for your primary injectors. To completely remove intake restrictions and ingest massive air volume, the manifold accommodates multiple throttle configurations, offering dedicated flange choices that support an upgraded high-flow 70mm or massive 75mm throttle body setup.
- Side-Feed Plenum Design: Optimized high-capacity side-entry plenum configuration engineered for fast throttle response, uniform air distribution, and absolute structural strength under immense boost pressure.
- Velocity Stack Design: Individual runners featuring high-flow venturi effect velocity stacks for superior cylinder filling and maximized airflow velocity.
- Auxiliary Injection Ready: Built-in provisioning with dedicated water-methanol or nitrous injection ports (1 dedicated port per cylinder) to safely support your cooling and octane requirements under extreme load.
Production time for this intake is 2 weeks since the order is confirmed!
For any additional information contact us.
Additional information
| Weight | 6 kg |
|---|---|
| Dimensions | 40 × 40 × 30 cm |
| Brand | Lotus, Opel |
| Engine | Z20LE |
| Model | Astra G 00-05, Astra H 04-10, Europa 06-10, Insignia A 09-13, Zafira A 01-05, Zafira B 05-10 |
| Throttle body size | 70mm *NO BOLT DRILLS, 70mm(65×65), 74/75mm (70×70), 74/75mm *NO BOLT DRILLS |
| Fuel rail threads | AN6, AN8 |












