How much horse power will a S and intake?

It is not possible to accurately determine the horsepower gains from installing an S and intake on a vehicle without knowing the specific setup and conditions. The horsepower gains from modifications like these can vary depending on several factors, including the make and model of the vehicle, the engine type, the specific parts used, and the way they are installed and tuned.

In general, an S and intake can offer some horsepower gains, especially in turbocharged or supercharged vehicles. However, it's important to note that the actual gains achieved can be influenced by a variety of factors, including:

1. Engine Displacement and Turbo/Supercharger Size: Larger displacement engines and higher-capacity turbochargers or superchargers tend to benefit more from S and intake upgrades.

2. Quality of S and Intake Components: The design, engineering, and materials used in the S and intake components play a significant role in determining the efficiency and performance gains.

3. Tuning and Calibration: Proper tuning is essential to optimize performance gains and ensure that the engine runs smoothly and efficiently with the new components.

4. Supporting Modifications: Other supporting modifications, such as a high-flow exhaust system, upgraded intercooler, and improved fuel delivery system, can further complement the gains from an S and intake.

5. Engine Health and Condition: The overall condition and health of the engine, as well as the driveline components, can affect the effectiveness of S and intake modifications.

Therefore, it is recommended to consult with a professional tuner or automotive expert who is familiar with your specific vehicle and can assess the potential horsepower gains based on the specific components you are considering. They can provide a more accurate estimate and ensure that the modifications are installed and tuned appropriately for optimal performance.