[tdli]

I have a 2007 E93 and recently car developed a fuel leak @ 65,XXX miles. I traced the leak and it is coming from rear driver side LPFP cover. Fuel squirts out from a tiny crack.

I searched and came across these parts from ECS:

https://www.ecstuning.com/b-genuine-...t/16117163295/

I believe this is all OEM, straight forward replacement.

I also read about an "upgraded" LPFP option and found the part here:

https://www.n54tuning.com/index.php?...-lpfp-upgrade#

OR

https://www.n54tuning.com/index.php?...2-lpfp-upgrade

My question is:

1. Are there any performance gains if I went with the kit from n54tuning?

1a. What's the difference between the stage 1 and stage 2?

2. Does the stage 1 come with just the pump or also the top cover (which is currently what's causing my leak)?

If it helps, my car is all stock now, but I plan to install JB4 in the near future.

Thanks all for your time and help.

[mojobmw_e90]

Drivers side only has the filter, regulator assembly. Thats all. It does. Fuel gets sent from the fuel pump to the regulator to the engine..

The ecs part u have for the regulator /filter assembly is correct. If. You beleive u have a crack u need to replace that entire unit. In order to replace the entire unit, the passanger side fuel pump assembly has to be unhooked and 3 lines have to be unhooked before the fuel filter can be removed

[tdli]

^ appreciate your time and reply. I will go ahead and get the part from ECS to replace the filter/regulator assemble.