Table of Contents
The Audi B9 A4 2.0T is a popular choice among performance enthusiasts looking to boost horsepower and overall driving experience. With the right modifications, you can easily achieve a gain of 50+ horsepower. In this article, we will explore the best mods for the B9 A4 2.0T, highlighting top brand picks and their associated costs.
Understanding the B9 A4 2.0T Engine
The B9 A4 2.0T is equipped with a turbocharged inline-four engine that produces a solid base power. However, many owners seek to unlock its full potential through various performance modifications. Understanding how these mods work will help you make informed decisions.
Top Modifications for 50+ HP Gains
- ECU Tune: A performance ECU tune is one of the most effective ways to increase horsepower. Brands like APR, Unitronic, and Cobb offer tunes that can yield significant gains.
- Cold Air Intake: Upgrading to a high-flow cold air intake helps your engine breathe better, resulting in improved performance. Popular options include the AFE Power and K&N intakes.
- Turbo Upgrade: Replacing the stock turbocharger with a larger unit can dramatically increase power. Brands like CTS Turbo and BorgWarner offer excellent upgrades.
- High-Performance Exhaust: A cat-back exhaust system enhances the exhaust flow, which can lead to increased horsepower. Brands like Milltek and AWE Tuning are well-regarded in this category.
- Intercooler Upgrade: A larger intercooler helps maintain lower intake temperatures, allowing for more aggressive tuning. Look for options from Forge Motorsport or ECS Tuning.
- Downpipe: A high-flow downpipe can significantly improve exhaust flow, contributing to better performance. Brands like CTS Turbo and Milltek provide quality options.
Brand Picks and Costs
ECU Tune
ECU tunes vary in price based on the brand and features offered. Here are some popular options:
- APR Stage 1: Approximately $600
- Unitronic Stage 1: Approximately $500
- Cobb Accessport: Approximately $650
Cold Air Intake
Investing in a cold air intake can range in price:
- AFE Power Stage 2: Approximately $350
- K&N 69 Series: Approximately $300
Turbo Upgrade
Turbo upgrades can be more expensive but offer substantial gains:
- CTS Turbo K04: Approximately $1,500
- BorgWarner K04: Approximately $1,600
High-Performance Exhaust
Exhaust upgrades vary based on design and material:
- Milltek Cat-Back: Approximately $1,200
- AWE Tuning Track Edition: Approximately $1,100
Intercooler Upgrade
Intercooler upgrades can help maintain performance during intense driving:
- Forge Motorsport Intercooler: Approximately $800
- ECS Tuning Intercooler: Approximately $750
Downpipe
High-flow downpipes are essential for optimal exhaust flow:
- CTS Turbo Downpipe: Approximately $500
- Milltek Downpipe: Approximately $600
Conclusion
Upgrading your B9 A4 2.0T can lead to impressive performance gains. By selecting the right modifications and brands, you can achieve over 50 horsepower increases. Always consider your budget and performance goals when planning your upgrades.