UNITRONIC STAGE 2+ : 450HP / 385LB-FT / (STOCK POWER: 333HP / 325LB-FT)

Unitronic's industry-leading tuning & hardware upgrade solution for your S4 is available via dealer tuning, or you at home with your own UniCONNECT+ cable!

93 OCTANE / 98 RON GAS REQUIRED

HP+117  LB-FT+60

Performance Software Precisely Engineered for use with Unitronic Pulley Upgrade Kit (not included).

Flashed directly through the (OBDII) Diagnostic port of your vehicle (10-15 minutes).

UniCONNECT+ (Cable Required)

This vehicle has added support through UniCONNECT+ which allows you to program your own vehicle right in your own garage. 

Features

• Engineered with Strict Industry Standards
• Extensively Tested Under Various Driving Conditions
• Factory Safety Limiters Retained
• Optimized Responsiveness and Drivability
• Optimized Smoothness and Driving Comfort
• Power Delivery Perfectly Optimized Throughout the Power Band
• Improved Fuel Efficiency
• Ignition Timing Precisely Calibrated for Higher Octane Fuel
• Includes all Stage 2+ tune variants and all lower software stages as well.