WARNING: This product can expose you to chemicals that are known to the State of California to cause cancer, birth defects or other reproductive harm. For more information, visit www.P65warnings.ca.gov.The APR Ultracharger Throttle Body Upgrade (MS100128) is the definitive performance modification for the Audi B8/B8.5 S4 and S5 3.0T. By replacing the restrictive factory throttle body with a unit that is 28% larger, this system eliminates the single greatest bottleneck in the 3.0 TFSI intake tract. When paired with dual pulley upgrades, the Ultracharger allows the supercharger to breathe without restriction, pushing output to an astonishing 542 HP.
The system is as visually impressive as it is functional, featuring a carbon fiber intake tube and a smooth cast-aluminum inlet adapter. To ensure the engine can handle this massive increase in airflow, APR includes the specialized Ultracharger ECU Upgrade (provided as a free software update for existing Stage 2 owners) and a set of high-performance NGK spark plugs. This is a comprehensive "Stage 3" level upgrade designed for enthusiasts who want to maximize the potential of the EA837 supercharged engine.
Features:
- Unrestricted Airflow: 28% larger throttle body removes the massive pre-supercharger restriction, allowing for up to 542 HP.
- Premium Materials: High-gloss carbon fiber inlet tube and cast aluminum adapter for a factory-plus engine bay aesthetic.
- Software Included: The specialized APR Ultracharger ECU software is included (re-flash required by an authorized dealer).
- Plug-and-Play Wiring: Includes a custom wiring harness to adapt the larger throttle body to the factory engine loom.
- Comprehensive Hardware: Comes with all necessary gaskets, hardware, and NGK BKR9EIX spark plugs.
- Massive Power Band: Delivers smooth, linear power delivery that transforms the 3.0T into a supercar-slaying daily driver.
Product Contains:
- (1) 28% Larger Throttle Body Unit
- (1) Carbon Fiber Inlet Tube
- (1) Cast Aluminum Supercharger Inlet Adapter
- (1) APR Ultracharger Wiring Harness
- (6) NGK BKR9EIX Spark Plugs
- (1) Set of Gaskets and Installation Hardware
Critical Requirements & Compatibility:
Hardware Requirements: To reach advertised power levels and ensure engine safety, this system MUST be used with:
- APR Supercharger Drive Pulley & Crank Pulley (Dual Pulley Setup)
- APR Supercharger Coolant Performance System (CPS)
- High-Flow Exhaust System & Upgraded Intake
- Upgraded Transmission Software (TCU) to allow for higher RPM limits
- Spark plugs must be gapped to .024" +/- .002" and torqued to 30Nm
Warranty: This product is supported by a Manufacturer's Warranty. Note: Manufacturer warranty terms are subject to change.
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