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AMS Performance
AMS Performance BMW B58 Intake Manifold
$3,999.95
OVERVIEW
As horsepower numbers rise, so do temperatures through the BMW B58's intercooling system. The AMS Performance BMW B58 Intake Manifold replaces the restrictive factory piece with a parallel twin-core air-to-water intercooler design, routing coolant from the middle of the unit rather than end-to-end for dramatically reduced pressure drop and faster heat rejection. The AMS SnailWorks Engineering Team verified airflow distribution using CFD analysis, achieving airflow equalization within 0.5% across all cylinder ports.
SPECS
- 1250+ HP rated parallel air-to-water intercooler cores
- 135% larger core area than the OEM manifold for superior cooling
- Auxiliary port fuel rail with -8AN side ports for expanded fueling options
- CFD-verified A356 T6 cast aluminum plenum and runner design
- Properly angled port injection nozzles aimed at the intake valve and combustion chamber
- Additional -4AN ORB ports on the plenum for vacuum source points
- Fully compatible with A/C, power steering, oil filter cap, and other factory options
PARTS INCLUDED
- AMS B58 intake manifold with parallel twin-core air-to-water intercooler
- Auxiliary port fuel rail (-8AN side ports)
- All hardware, lines, and fittings for a direct bolt-in install
TECH RESOURCES
- Required additional hardware: the auxiliary fuel rail is designed for Bosch-style injectors (e.g. Injector Dynamics 1050.34.14.14.6) — injectors sold separately
- Requires the OEM oil filter cap; does not fit with the OEM engine cover (aftermarket cap fitment not guaranteed)
- Recommended companion: AMS BMW M340i B58 Heat Exchanger
PART NUMBER
- AMS.51.08.0001-1
VEHICLE APPLICATIONS
| Make | Model | Chassis | Engine | Years |
|---|---|---|---|---|
| BMW | M340i | G20/G21 | B58 | 2019+ |
| BMW | M440i | G22/G23/G26 | B58 | 2020+ |
| BMW | 540i / 540i xDrive | G30/G31 | B58 | 2017–2023 |
| BMW | Z4 M40i | G29 | B58 | 2019–2026 |