This fuel pump upgrade is the best bang for your buck when it comes to fueling solution. This pump utilizes a genuine walbro 450-00274... 

stage 2+ is great for over 600whp , it uses the walbro 525 hellcat pump

Going with a used core is a cheaper option & still performs 100%, we can rebuild a used core into a stage 2 

On the other hand, a new core is a more expensive option. We utilize the dealership cores and rebuild those into stage 2 (looks more presentable).