* The specific Camaro model and year: Different engines and configurations will respond differently.
* The specific Flowmaster system: Different mufflers and exhaust setups offer varying levels of performance gains. A cat-back system will yield different results than just a muffler swap.
* Other modifications: Engine modifications, intake systems, and tuning all interact with the exhaust system. A Flowmaster system might provide a noticeable increase on a stock engine, but a less dramatic gain on a heavily modified one.
* Testing methodology: Dyno results can vary based on the dyno itself, environmental conditions, and the way the testing is conducted.
While some advertising might claim horsepower gains, it's more accurate to say that Flowmaster systems typically improve exhaust flow, which *can* lead to small horsepower and torque increases, usually along with a more noticeable improvement in sound. These gains are often in the single-digit horsepower range, or even less, and are sometimes difficult to measure precisely. You shouldn't expect a substantial jump in power just from installing a Flowmaster exhaust.
