Here's why:
* Vehicle Specific: Horsepower gains depend heavily on the specific vehicle model, engine type, and other modifications. A Flowmaster system might give a noticeable boost on a stock V8 engine, but have a negligible impact on a smaller, more efficient engine.
* System Variation: Flowmaster offers a wide variety of exhaust systems, each with its own design and specifications. Some are designed for maximum performance, while others prioritize sound or durability.
* Installation Quality: Proper installation is critical. If the system isn't installed correctly, you may not see the intended performance gains.
* Other Modifications: The potential benefits of a Flowmaster system can be amplified (or diminished) by other modifications, such as engine tuning, air intake upgrades, or headers.
Instead of focusing on a specific horsepower gain, consider these points:
* Sound and Style: Flowmaster is known for its distinctive sound.
* Improved Flow: A performance exhaust system like Flowmaster can improve exhaust flow, potentially leading to increased horsepower and torque.
* Weight Reduction: A lighter exhaust system can improve acceleration and handling.
For the most accurate assessment of potential performance gains, consult a reputable mechanic or tuning specialist. They can assess your specific vehicle and recommend the best exhaust system for your needs.