What parts would make a 1996 Yamaha Waverunner 3 go faster?

* High-performance impeller: This is the most important modification for increasing speed. A high-performance impeller has more blades and a more aggressive pitch than a stock impeller, which allows it to move more water and propel the Waverunner faster.

* Exhaust system: A high-performance exhaust system can help to improve airflow and reduce backpressure, which can increase power and speed.

* Intake system: A high-performance intake system can help to improve airflow to the engine, which can increase power and speed.

* Cylinder head: A ported and polished cylinder head can increase the flow of air and fuel into and out of the combustion chamber, which can increase power and speed.

* Pistons: High-compression pistons can increase the compression ratio of the engine, which can increase power and speed.

* Camshaft: A performance camshaft can change the timing of the engine's valves, which can increase power and speed.

* Fuel injection system: A fuel injection system can provide a more precise mixture of air and fuel to the engine, which can increase power and speed.

* Turbocharger or supercharger: A turbocharger or supercharger can force more air into the engine, which can increase power and speed.

It is important to note that some of these modifications may void the warranty on the Waverunner. It is also important to make sure that the Waverunner is properly maintained before making any modifications, as some modifications can put additional strain on the engine and other components.