The FASS DMAX7001 Flow Enhancer Fuel Pump is the perfect solution for those looking to improve the performance of their Duramax 2001-2010. This pump reduces the workload on the factory CP3/CP4, delivering fuel under pressure and improving fuel flow. It also reduces air and vapor, making it a budget-minded alternative to other options on the market. This pump is simple to install, making it a great choice for those who want to improve the performance of their vehicle without spending a lot of money.