Table of Contents
The Audi B8 S4 is a well-regarded performance sedan that combines luxury with impressive power. For enthusiasts looking to push their B8 S4 beyond the factory limits, achieving 400+ wheel horsepower is a common goal. This article will outline various upgrades, their associated costs, and the real-world results you can expect.
Understanding the B8 S4 Platform
The B8 S4, produced from 2009 to 2016, features a supercharged 3.0-liter V6 engine. This engine is known for its smooth delivery of power and strong torque characteristics. However, to reach the 400+ wheel horsepower mark, several modifications are necessary.
Key Upgrades for Achieving 400+ Wheel HP
- ECU Tune: A performance ECU tune is the most critical first step. This modification adjusts fuel maps, timing, and boost levels.
- Intake Upgrade: A high-flow intake system allows for better airflow into the engine, improving efficiency and performance.
- Exhaust System: Upgrading to a cat-back exhaust system reduces back pressure and enhances the engine’s sound while increasing horsepower.
- Intercooler Upgrade: A larger intercooler helps keep intake temperatures low, which is crucial for performance during extended driving.
- Supercharger Pulley: Installing a smaller supercharger pulley increases boost pressure, directly impacting horsepower.
- Fuel System Upgrades: Upgrading fuel injectors and fuel pumps ensures that the engine receives adequate fuel for increased power levels.
Cost Breakdown of Upgrades
Understanding the costs associated with each upgrade is essential for budget planning. Below is a breakdown of the expected costs for each modification.
- ECU Tune: $600 – $1,200
- Intake Upgrade: $300 – $800
- Exhaust System: $1,000 – $2,500
- Intercooler Upgrade: $800 – $1,500
- Supercharger Pulley: $200 – $500
- Fuel System Upgrades: $500 – $1,500
Real-World Results
After implementing these upgrades, many B8 S4 owners have reported significant gains in horsepower and torque. Below are some examples of real-world results from various setups.
- Stage 1 Tune: Typically yields around 350-370 wheel horsepower.
- Stage 2 Setup (Intake, Exhaust, Tune): Can achieve 400-420 wheel horsepower.
- Fully Built Setup (All Upgrades): Some owners report upwards of 450 wheel horsepower with proper tuning and supporting mods.
Considerations Before Upgrading
While the performance upgrades can significantly enhance the driving experience, there are several considerations to keep in mind before proceeding.
- Warranty: Many modifications can void the manufacturer warranty. Be sure to understand the implications.
- Reliability: Increased power can strain engine components. Ensure that your vehicle is in good condition before upgrading.
- Insurance: Modifications may affect your insurance policy. Check with your provider for coverage details.
- Resale Value: Consider how modifications may impact the resale value of your vehicle.
Conclusion
Achieving 400+ wheel horsepower on a B8 S4 requires careful planning, quality upgrades, and an understanding of the costs involved. By following the outlined steps and considerations, you can transform your B8 S4 into a high-performance machine that delivers thrilling driving experiences.