Thanks to member tacoma330ci I was able to get a walbro intank pump that pretty much drops into the stock pump module without cutting stuff up.
I initially went with a Bosch 044 pump installed externally but it was just too loud for me and I have a loud exhaust. I also was not up to the task of installing it inside the tank since its such a large pump and would require some work to fit. So I sold the 044 pump and went with the stock M5 pump. It has held well for me but have always been concerned since the pierburg rates it at 140 lph at 70 psi.
Finally this past week I got the pump tacoma recommended and just got around to installing it. So far so good.
walbro vs stock E39 pump. You can see the stock pump is much larger than the walbro which means it will require a sleeve.
the pump intakes are oriented in a similar manner
this is why the intake orientation matters. The walbro slides right into the opening at the bottom of the holder
Just before dropping into the tank
thats all for now
I initially went with a Bosch 044 pump installed externally but it was just too loud for me and I have a loud exhaust. I also was not up to the task of installing it inside the tank since its such a large pump and would require some work to fit. So I sold the 044 pump and went with the stock M5 pump. It has held well for me but have always been concerned since the pierburg rates it at 140 lph at 70 psi.
Finally this past week I got the pump tacoma recommended and just got around to installing it. So far so good.
walbro vs stock E39 pump. You can see the stock pump is much larger than the walbro which means it will require a sleeve.

the pump intakes are oriented in a similar manner

this is why the intake orientation matters. The walbro slides right into the opening at the bottom of the holder

Just before dropping into the tank

thats all for now