I installed this regulator while upgrading my fuel system, and it was definitely worth doing at the same time. The fit was exactly like the factory regulator, so installation was straightforward with no modifications needed. Build quality is excellent, and it gives some extra peace of mind knowing the fuel system can maintain pressure better with an upgraded pump and future power mods.
If you're installing a DW300c or similar high-flow fuel pump, I'd highly recommend adding this regulator while everything is apart. It's an inexpensive upgrade that helps maximize the performance of your fuel system and saves you from having to pull the fuel pump assembly again later. Overall, great quality, perfect fit, and exactly what I expected.