How much HP gain from a Borla exhaust system?

The horsepower gain from a Borla exhaust system can vary depending on the specific vehicle and exhaust setup. Generally, users report an increase of 5 to 15 horsepower, but this can be higher for performance-oriented applications or when combined with other modifications. It's important to consult specific dyno results for your vehicle model to get an accurate estimate. Additionally, the overall performance improvement may come from better exhaust flow and reduced backpressure rather than just raw horsepower numbers.