The APR MS100128 Ultracharger System dramatically increases horsepower and torque, and maximizes the power potential of the 3.0 TFSI. It removes a massive pre-supercharger restriction, allowing uninterrupted airflow into the supercharger bringing power to 478 HP and 426 TQ on 91 octane fuel and up to an astonishing 541 HP and 472 TQ on 104 Octane fuel. Stunning carbon fiber and smooth cast-aluminum adorn the system, creating a clean and simple install that looks just as powerful it is. Finally, APRs innovative Ultracharger ECU Upgrade delivers a smooth and exciting driving experience, and it is included as a free upgrade to all who own an APR Stage II ECU Upgrade.

The factory throttle body is a massive power-robbing restriction. Its cross-sectional area is ~25% smaller than the superchargers inlet, causing airflow to plummet at high supercharger speeds. Its responsible for losses as high as 33 HP!

The APR Ultracharger Throttle Body is huge. Its cross-sectional area is ~28% larger than stock, and an additional 5% larger than the superchargers inlet. It completely eliminates the throttle body as a point of restriction and allows for maximum airflow into the supercharger.

APRs incredible Ultracharger ECU Upgrade is why it all just works. It delivers an outstanding driving experience, packed with a smooth daily driving, thrilling wide open throttle acceleration, and unmatched performance. Its APR's most advanced 3.0 TFSI software to-date, and its included as a free upgrade to all who own an APR Stage II ECU Upgrade.

APR Ultracharger System Fitment:

• 2010-2016 Audi S4  _________________  2010 Audi S4  2011 Audi S4  2012 Audi S4  2013 Audi S4  2014 Audi S4  2015 Audi S4  2016 Audi S4 
• 2010-2017 Audi S5  _________________  2010 Audi S5  2011 Audi S5  2012 Audi S5  2013 Audi S5  2014 Audi S5  2015 Audi S5  2016 Audi S5  2017 Audi S5 

APR Ultracharger Manufacturing:
The APR Ultracharger is made from carbon fiber and smooth cast-aluminum. Gaskets, bolts, clamps, couplers, and wiring and hose extensions are included as is a set of NGK BKR9EIX spark plugs.

APR Ultracharger Kit Install:
Installation of the APR Ultracharger typically takes about 3 hours. It is recommended to have the installation done at your APR dealer as the ECU requires reprogramming in order for the engine to run with the new throttle body.

Note:
Required for installation:

• APR Stage I ECU Upgrade
• APR Supercharger Drive Pulley Upgrade
• APR Supercharger Crank Pulley Upgrade
• APR Stage II ECU Upgrade
• APR CPS supercharger cooling upgrade

Recommended for optimal performance:

• APR TCU Upgrade (for DSG equipped cars)
• A high flow intake system
• removal of the intake snow screen
• High flow catalytic converters