Engineered for Maximum Plenum Volume: The Ultimate Billet Intake Manifold Upgrade
When maximizing the power metrics of the Mercedes-AMG 4.0L Twin-Turbo V8 engine, the factory plastic intake manifolds become a severe structural and aerodynamic bottleneck. Under high-boost conditions, the OEM plastic units are prone to flexing, leaking at the seams, or failing entirely, while their internal geometry restricts balanced airflow. The Premier Tuning Group (PTG) X M178 Intake Manifolds are a purpose-built, ground-up engineering solution designed specifically for AMG owners demanding uncompromising performance, structural strength, and balanced cylinder distribution.
Designed and engineered entirely in-house by PTG’s performance specialists, this manifold system delivers optimized airflow characteristics alongside unmatched structural integrity. Whether you are building a high-boost street car or a dedicated, record-breaking track weapon, these manifolds provide the scalability and craftsmanship required for true engine dominance.
Aerospace-Grade Billet Construction & Optimized Flow Geometry
The PTG X Intake Manifolds eliminate the structural vulnerabilities of the factory engine components while radically improving volumetric efficiency:
- CNC-Machined Billet Aluminum: Precision-milled from solid blocks of aircraft-grade billet aluminum alloy. This construction guarantees absolute durability under extreme boost pressures and high-temperature engine bay environments, entirely eliminating the risk of manifold burst or structural deflection.
- Balanced Plenum & Runner Dynamics: Features an optimized plenum volume and carefully engineered runner geometry. This layout ensures equalized air distribution across all eight cylinders, optimizing combustion efficiency, smoothing out the powerband, and maximizing top-end power.
- Flawless Component Integration: Designed to deliver a seamless, direct-fit installation. The manifolds feature precision mounting provisions that integrate natively with all factory sensors, the OEM throttle body, and factory installation hardware without requiring permanent modification.
Available in Two High-Performance Configurations
To align perfectly with your vehicle’s specific performance targets, this manifold system can be configured in two distinct variations:
- With Port Injection: Built specifically for elite, high-horsepower or ethanol-fueled setups requiring fueling volume beyond what the direct-injection system can provide. This version includes pre-machined auxiliary fuel injector bungs, custom fuel rails, mounting hardware, and an auxiliary ECU unit to seamlessly control secondary fuel delivery.
- Without Port Injection: Designed for clean, lightweight simplicity. This version maintains standard direct-injection operation while delivering the full aerodynamic flow benefits, increased plenum capacity, and bulletproof strength of the PTG performance architecture.
Technical Specifications & Features:
- Material Architecture: Precision CNC-machined from premium high-yield Billet Aluminum
- Engineering Geometry: CAD-optimized plenum and runner paths for equalized cylinder airflow
- Structural Integrity: Rated to withstand extreme high-boost and high-temperature environments
- Configuration Versatility: Available with integrated Port Injection (includes fuel rails, bungs, and auxiliary ECU) or standard Direct Injection
- Integration Protocol: Direct bolt-on design compatible with factory sensors, hardware, and throttle body
Vehicle Fitment Guide:
This billet intake manifold upgrade is precision-validated exclusively for the Mercedes-Benz M178 4.0L Twin-Turbo V8 engine configuration found in the following models:
- 2015–2021 Mercedes-AMG GT (C190 Coupe / R190 Roadster)
- 2016–2021 Mercedes-AMG GT S (C190 / R190)
- 2017–2021 Mercedes-AMG GT C (C190 / R190)
- 2017–2021 Mercedes-AMG GT R / GT R Pro / Black Series (C190)
Tags
Premier Tuning Group, PTG X manifolds, M178 billet intake manifolds, AMG GT intake upgrade, Mercedes 4.0L biturbo plenum, CNC machined intake runner, C190 performance parts, R190 engine upgrades, secondary port injection AMG, auxiliary fuel rails, high boost manifold burst fix, balanced cylinder distribution, Mercedes fuel rail kit, AMG GT R performance, custom intake plenum, engine bay billet upgrades, M178 port fuel injection.
