Built for the EA824 twin-turbo V8 in the Audi RS6 Avant, Audi RS7 Sportback, and Audi S8, the Apex Stage 2 Package is the complete, no-compromise upgrade for this platform.
Airflow. Fueling. Transmission. All aligned.
Apex Stage 2 Performance Package (ECU + TCU)
A fully integrated setup combining essential hardware upgrades with precision engine and gearbox calibration.Built for maximum usable performance without stepping into full Stage 3.
What’s included
Hardware:
High-flow downpipes
Performance intakes
Upgraded HPFP (high-pressure fuel pump)
Upgraded HPFP fuel lines
Software:
Engine (ECU):
Custom Stage 2 ECU remap
Increased boost targets
Optimised ignition timing under load
Fueling calibration matched to HPFP upgrades
Raised torque and load limiters
Enhanced throttle mapping
Gearbox (TCU):
Custom Stage 2 TCU remap
Increased clutch pressure for higher torque capacity
Faster, more aggressive shift speeds
Optimised shift points under load
Raised torque limits to match engine output
Enhanced launch control strategy
What it feels like
Instant throttle response
Massive mid-range torque
Hard, aggressive acceleration
Rapid, seamless gear changes
No hesitation. No gaps in power
Everything works together as one system.
Daily driving
Refined at low throttle.Controlled in traffic.
Drive modes stay true to factory—just sharper when pushed.
Performance gains
Significant horsepower and torque increase
Faster acceleration through every gear
Improved high-speed performance
Consistent, repeatable output
(Results vary depending on setup and fuel quality)
Why Apex
Complete airflow, fueling, and transmission solution
ECU and TCU calibrated together for maximum efficiency
Handles increased torque safely
Delivers strong, reliable performance
The ultimate Stage 2 setup before going Stage 3
More air. More fuel. Total control.Apex Stage 2 — where performance peaks before full build.
