Dinan Big Turbo Kit - No Core for BMW X-Series (F Chassis, N55) 2012-2019

The Dinan Big Turbo Upgrade for the Electric Wastegate (EWG) N55 engine is an exceptional performance enhancement designed for racing enthusiasts or anyone seeking to maximize the power potential of their BMW. This upgrade offers a significant increase in airflow, enabling the turbo to generate higher boost pressures at elevated engine speeds while maintaining efficiency. The result is a dramatic boost in power and torque, allowing the N55 engine to achieve performance levels typically reserved for higher-tier models.

Key Features & Benefits:

• Larger Compressor Wheel: The turbo's billet compressor/impeller wheel is 30% larger than the stock unit, allowing for significantly greater airflow. This enables the engine to produce higher boost pressures at higher RPMs, resulting in more power while retaining efficiency.
• Fully Cast Construction: The turbocharger is cast to Dinan's specifications and incorporates an upgraded thrust system, providing greater durability and reliability over stock turbos. This eliminates the need for core exchange programs and lengthy wait times, making the upgrade more convenient.
• Enhanced Durability: The upgraded thrust system ensures that the turbo can withstand the increased demands of higher boost levels, offering prolonged life and consistent performance.
• Power Gains: With the Stage 2 Flash and Dinan software, combined with an upgraded intercooler, the turbo delivers significant power and torque gains, with 93 octane fuel being the recommended setup.
  • M2 (with Stage 2 Flash):
    • Peak power: 417 BHP @ 6500 RPM
    • Peak torque: 440 lb-ft @ 3500 RPM
    • Max gains: +48 BHP @ 4000 RPM, +64 lb-ft @ 3000 RPM
  • Non-M2 (with Stage 2 Flash):
    • Peak power: 384 BHP @ 5500 RPM
    • Peak torque: 439 lb-ft @ 3500 RPM
    • Max gains: +122 BHP @ 4500 RPM, +162 lb-ft @ 3000 RPM
    • Race gas options are also available for further power gains.
• Optimized Installation Procedure: The Dinan installation process is quicker than BMW's turbo replacement procedure, saving time and labor costs. This is particularly beneficial for RWD vehicles, where installation is simplified.
• Comprehensive Kit: The package includes all necessary o-rings and gaskets for installation on RWD vehicles. For xDrive vehicles, additional hardware is required (Dinan P/N D313-0117).
• Factory-Matching Warranty: Dinan offers a 4-year/50,000-mile new car warranty when the system is installed according to Dinan specifications, providing peace of mind for performance enthusiasts.
• Emissions Legal: The upgrade is 50-state emissions legal, certified under CARB EO # D-176-52, ensuring compliance with emissions regulations across the U.S.

Performance & Compatibility:

• This turbo upgrade is only compatible with electric wastegate vehicles.
• To fully realize the performance gains, Dinan recommends pairing the turbo with their Stage 2 Flash, an upgraded intercooler (Dinan Dual Core Intercooler where applicable), and high-octane fuel.