APR presents the 3.0 TFSI Supercharger Drive and Crank Pulley Upgrades.


APR’s Supercharger Drive and Crank Pulley Upgrades dramatically increase horsepower and torque by increasing the rotational speed of the factory supercharger. APR’s Stage II Pulley ECU Upgrade makes the necessary engine management adjustments to handle the increased supercharger speeds, and in turn allows the engine to create more power. The pulleys are sold separately, allowing for multiple levels of performance, each of which builds upon the other. Finally, when combined with APR’s Ultracharger Throttle Body Upgrade in a dual pulley setup, the system is alleviated of power robbing inlet restrictions, allowing the engine to achieve exciting new levels of performance


APR Supercharger Dual Pulley Upgrades 
Audi S4 / S5 (B8)

Stage                            Fuel Grade   Power     Torque      Gain Over Stock

Stage 2 Dual Pulley        91 AKI /  95 RON  445 HP  412 FTLBS  +100 HP   +80 FTLBS
Stage 2 Dual Pulley        93 AKI /  98 RON  465 HP  428 FTLBS  +120 HP   +97 FTLBS
Stage 2 Dual Pulley       100 AKI / 104 RON  513 HP  459 FTLBS  +168 HP  +126 FTLBS
Stage 2 Dual Pulley       104 AKI / 108 RON  527 HP  469 FTLBS  +182 HP  +136 FTLBS

Audi S4 / S5 (B8.5)

Stage                            Fuel Grade   Power     Torque      Gain Over Stock

Stage 2 Dual Pulley        91 AKI /  95 RON  445 HP  415 FTLBS  +134 HP   +98 FTLBS
Stage 2 Dual Pulley        93 AKI /  98 RON  468 HP  432 FTLBS  +157 HP  +115 FTLBS
Stage 2 Dual Pulley       100 AKI / 104 RON  513 HP  461 FTLBS  +202 HP  +147 FTLBS
Stage 2 Dual Pulley       104 AKI / 108 RON  527 HP  471 FTLBS  +215 HP  +157 FTLBS

- APR recommends and tuned with Sunoco GT 260 for 100 AKI mode and Sunoco GT 260 Plus for 104 AKI mode. Never use lower octane than specified by the mode.
- Max increases are based on APR's actual measured stock values and not those reported by Audi. | RON = ROW Fuel Grades | AKI = North American (RON+MON)/2 Fuel Grades.
- Reported wheel figures measured using APR's in house dynos using SAE J1349 correction and an average of multiple runs for all figures. Crank figures are estimated based on the measured wheel figures and APR's engine dyno results. Results will vary depending upon environmental conditions, vehicle, transmission, vehicle health, operating conditions, temperatures, fuel grade, dyno type, dyno setup, other variables and other modifications. For the best results, APR recommends removing the intake snow screen.


Supercharger Pulley Belts

A new Supercharger Belt is required.

Software

APR Stage II software is required to run any upgraded Pulley configuration and is sold separately. Stage II is no longer included with the pulley purchase. You only need to purchase Stage II once. If you're already Stage II from owning an APR Supercharger Drive Pulley, you don't need to purchase Stage II again. 


IMPORTANT REQUIREMENTS AND RECOMMENDATIONS:
This product is designed for use with APR's S Tronic TCU Upgrade, NGK BKR9EIX plugs gapped @ .024” +/- .002” torqued to 30Nm and a new supercharger belt. The APR Coolant Performance System is highly recommended and required with the dual pulley setup. IAT’s must be below 75c to achieve the advertised power figures. A high flow intake system is highly recommended and is required to meet the advertised power figures on the A4/A5/S4/S5/Q5/SQ5. For the best results, APR recommends removing the intake snow screen. (Always refer to the website for the most up to date product information)