Why would anyone need to replace the aluminum expansion chamber of a Power Factor Pipe to fit a carbon RRP chamber? The real reason behind this is the reduction in weight. The aluminum chamber weighs 3.8kg when the engine is not operating. However, as soon as it starts pumping in water inside the water jacket then it weighs 5.1kg. However, the RRP carbon chamber weighs only 2.3kg. This is a great difference when you want to get higher up on the air. Also, bearing in mind that this weight reduction is achieved almost in the middle of the hull/boat, this plays key role to the overall performance.
