
300-72SK SysteMAX Intake Manifold Kit 1986-93 5.0L EFI Includes:
- SysteMAX Intake Manifold Kit
- 1986-93 5.0L EFI
Includes: - Polished SysteMAX Intake Manifold
- Intake Bolts
- Intake Gaskets
- Throttle Body Gaskets
- 180° Thermostat
- Thermostat Gasket
- Antiseize
- Black RTV
Kit Part Numbers - Holley Polished SysteMAX Intake Manifold 510-300-72S
- JEGS Intake Bolts 555-83210
- JEGS Intake Gaskets 555-210200
- JEGS Throttle Body Gaskets 555-51307
- JEGS 180° Thermostat 555-53221
- JEGS Thermostat Gasket 555-53285
- JEGS Antiseize 555-28004
- JEGS Black RTV 555-28035
- Designed for 1986-93 Ford 5.0L EFI cars, Holley's SysteMAX II Cast Aluminum Intake Manifold is fully machined and ready to bolt on. Don't be fooled by its California emissions-legal designation, this manifold will flow air from 2000 to 6500 RPM like no other street/strip manifold!
JEGS Easy Kits are designed by JEGS professionals so you get all the parts you need.
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Unlock the full performance potential of your Fox-body or 5.0L Mustang build with the Holley SysteMAX II Ford 5.0L EFI Intake Manifold—a bolt-on upgrade designed to maximize airflow, torque, and horsepower across the entire powerband. Whether you're daily driving, hitting the track, or building a show-worthy street machine, this intake manifold is engineered for serious results.
The Holley SysteMAX system is a proven performance solution for 1986–1995 5.0L EFI Ford small blocks, offering a significant power increase over stock intake setups. Precision-cast from lightweight aluminum, the SysteMAX II features a high-flow design with optimized runner geometry and a larger plenum that improves cylinder filling and throttle response—especially in the mid to upper RPM range.
Perfectly matched for high-performance cams, ported heads, and other engine upgrades, the Holley SysteMAX 2 intake allows your 5.0L to breathe deeper and rev higher without sacrificing low-end drivability. It's a favorite among Mustang enthusiasts looking for that extra edge without compromising street manners.
Installation is straightforward thanks to factory-style mounting points and injector bosses, making it an ideal upgrade for both DIY builders and professional shops. Whether you're refreshing an aging EFI setup or building a modernized classic from the ground up, the Holley SysteMAX II delivers dyno-proven gains and race-ready reliability.
For 5.0L Ford fans who want real-world horsepower and proven performance, the Holley SysteMAX II is the intake manifold that gets the job done—on the street or the strip.

