Big Turbo Software Precisely Engineered to Run 20psi of Boost on a 2006-2008 A3 FSI with a big turbo upgrade and supporting modifications. (For over 400HP you need a built engine).

If using an external wastegate, it needs to have a 1 bar spring. If using an internal wastegate, you need to use 1 bar preload pressure. Use a 3" ID MAF housing with 8J TTRS DI Injectors, an 8J TTRS LPFP (with the stock OEM controller), a HPFP Upgrade, and the HPFP inlet fitting drilled to a 5mm ID. Any Big Turbo Stage 3 build should be accompanied by a built engine to handle the added power and torque. Basic "full bolt ons" are also required to support this upgrade (ex. Intake, Intercooler, Downpipe etc.). This formula works day in, day out, and is tried and true throughout the world.

Gas type
91 Octane - 93 Octane

Installation
Flashed directly through the (OBDII) Diagnostic port of your vehicle (10-15 minutes). (In some rare cases it may require a little more time.)

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

Performance Gains: Up to 300HP / Varies

Features

• Engineered with Strict Industry Standards
• Extensively Tested Under Various Driving Conditions
• Optimized Responsiveness and Drivability
• Power Delivery Perfectly Optimized Throughout the Power Band
• Speed Governor Removed
• RPM Limiter Increased to 7100 (With Stock Head)
• Ignition Timing Precisely Calibrated for Higher Octane Fuel
• Includes Stage 3 tune and all lower software stages.

Required hardware

• 2.0 TFSI Intercooler Kit
• 2.0L TFSI (FWD) 3" Downpipe
• Upgraded Exhaust System
• RS4 Injectors
• High Pressure Fuel Pump Upgrade
• Upgraded intake (OEM MAF size required)

Recommended hardware

• 2.0 TFSI DV Relocation Kit
• High Output Low Pressure Fuel Pump Upgrade
• Upgraded Low Pressure Fuel Pump (For over 450HP)
• Upgraded Rods (For over 400HP)
• Water Meth Kit (To Reach more than 500HP)