Description
Upgrade the charge-air cooling system of your Audi B9 S4 or S5 3.0T EA839 with the Untd. Performance Evo1 Intercooler Kit, designed to provide improved cooling capacity, lower intake air temperatures, and greater resistance to heat soak during repeated pulls and higher-boost driving.
The factory intercooling system is designed around OEM power levels and can become increasingly challenged as boost, airflow, and engine output increase. The Evo1 intercooler provides additional cooling capacity to help maintain more consistent intake temperatures, allowing the EA839 to deliver more repeatable performance, especially on tuned vehicles and during aggressive street or track use.
Key Features
- High-Performance Intercooler Core: Increased cooling capacity helps reduce charge-air temperatures under boost.
- Improved Heat-Soak Resistance: Designed to maintain more consistent intake temperatures during repeated acceleration, spirited driving, and higher-boost applications.
- More Consistent Power: Lower and more stable IATs can help reduce timing pull and maintain performance as temperatures rise.
- Ideal for Tuned EA839 Applications: Well suited for Stage 1, Stage 2, and higher-output B9 S4/S5 builds.
- Direct-Fit Design: Engineered around the Audi B9 S4/S5 3.0T EA839 platform for straightforward installation.
- Charge-Pipe Upgrade Options: The Evo1 intercooler can be paired with upgraded charge pipes and/or post-charge pipes depending on your build and airflow requirements.
- Complete Airflow Upgrade Potential: Combine the intercooler with charge-side piping upgrades to improve the overall strength and airflow capability of the forced-induction system.
Choose Your Piping Upgrade
The Evo1 Intercooler can be used on its own or combined with additional piping upgrades:
| Configuration | Recommended For |
|---|---|
| Intercooler Only | Stock and mildly tuned vehicles looking for improved cooling and heat-soak resistance |
| Intercooler + Charge Pipes | Tuned vehicles looking for improved charge-air flow and upgraded piping |
| Intercooler + Post-Charge Pipes | Builds prioritizing upgraded piping downstream of the intercooler |
| Intercooler + Charge Pipes + Post-Charge Pipes | Higher-power builds looking for a more complete charge-air system upgrade |
This gives you the flexibility to upgrade only the components your build requires rather than replacing the entire charge-air system at once.
Estimated Performance Gain
An upgraded intercooler is primarily a cooling and consistency upgrade, rather than a standalone horsepower-producing modification. On an otherwise stock vehicle, peak horsepower gains may be minimal. The biggest benefit becomes apparent as boost and power increase, where improved cooling can help the engine maintain more consistent performance.
| Configuration | Estimated HP Gain / Retained Power | Estimated Torque Gain / Retained Torque | Estimated Output |
|---|---|---|---|
| Stock Tune | +0–5 HP | +0–5 lb-ft | Near factory output |
| Stage 1 | +5–15 HP retained | +5–15 lb-ft retained | Depends on tune |
| Stage 2 | +10–20 HP retained | +10–20 lb-ft retained | Depends on tune |
| Higher-Boost / Turbo Upgrade | +15–30+ HP retained | +15–30+ lb-ft retained | Build dependent |
Important: These figures represent estimated power retention and consistency from improved charge-air cooling, not horsepower created solely by the intercooler. Actual results depend on the ECU calibration, ambient temperature, fuel quality, turbocharger, boost level, and supporting modifications.
Why Upgrade?
The factory intercooling system works well for the stock EA839 configuration, but increased boost and airflow from ECU tuning can place substantially greater demands on charge-air cooling.
When intake temperatures climb, the ECU can reduce ignition timing and other parameters to protect the engine, potentially reducing power during repeated pulls. The Evo1 intercooler helps combat this by providing greater thermal capacity and improved resistance to heat soak.
For customers building a more complete forced-induction system, the intercooler can also be combined with upgraded charge pipes and/or post-charge pipes to improve the overall airflow path and provide stronger supporting hardware for increased power.
Compatibility
- Audi S4 B9 3.0T EA839
- Audi S5 B9 3.0T EA839
- Suitable for stock and tuned applications
- Compatible with Stage 1, Stage 2, and higher-power builds depending on supporting modifications
Tuning & Installation
A tune is not required to install the Evo1 intercooler. However, the benefits of the upgraded cooling system become increasingly important as boost and engine output increase.
Professional installation is recommended. For higher-power applications, consider pairing the intercooler with upgraded charge pipes and/or post-charge pipes for a more complete and robust charge-air system.
⚠️ Important Notice
Horsepower and torque figures are estimates and will vary based on vehicle condition, ECU calibration, fuel quality, ambient temperature, turbocharger configuration, and supporting modifications. The primary benefits of the Evo1 intercooler are lower intake air temperatures, improved heat-soak resistance, and more consistent performance under sustained boost.
If you want, I can also make the Charge Pipe + Post-Charge Pipe options sound like selectable WooCommerce product options with short descriptions for each choice.
Specifications:
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Max Horsepower Capacity: 400–600hp
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Core Length: 22″
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Core Height: 16″
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Core Thickness: 2.5″
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Inlet: 2.30″
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Outlet: 2.60″
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End-to-End Length: Approximately 40″
