Nope, the mechanic did though hahaha.

Yeah I did a search too, it's a stock WRX fuel pump. What the hell was that doing in there?

Ant1
Nope, the mechanic did though hahaha.
Yeah I did a search too, it's a stock WRX fuel pump. What the hell was that doing in there?

Iuno...your car had sex with a Rexy? 

Haha yep, that's it for sure.

I'm currently in the process of removing my fuel tank now, and was about to make a bit of a writeup about it. Instead, I found this from mr2oc.com. Enjoy. 
http://www.lovehorsepower.com/MR2_Docs/mr2_fuel_pump_removal.htm
 
I got the tank ready to come out in about 2.5 hours. missing tools doesn't help though...

Why does everyone change the factory internal fuel pump? Couldn't you put a surge tank and fit a external instead using the factory in tank as the lift pump for the surge tank? Seems much easier to do.

track_mr2
Why does everyone change the factory internal fuel pump? Couldn't you put a surge tank and fit a external instead using the factory in tank as the lift pump for the surge tank? Seems much easier to do.

That's definitely another option, but you would only be swapping one big task (removing the fuel tank) with the equally time-consuming task of installing and plumbing a surge tank.
In some cases a surge tank is worth having anyway, eg. a dedicated track car.

Installing the surge tank will be very quick and easy. I would just mount it above the factory petrol filter and below the air box, that general area. You will basically use the fuel lines that are already there and having an external fuel pump is way easier to replace and check if something is wrong. I'd only replace the in tank if it let go.

Tried to search forum for info and results have been confusing with regards to upgrading the fuel pump or other aspects of the system when using a standard ECU. Not knowing much about upgrading a fuel system on a stock ECU I'm trying to learn as much as possible. It's been 30 years with my fuel pump so I should consider changing it soon. Given the difficulty of the task I'd like to select a pump that offers use-ability with current ECU and also not restrictive if I want to go aftermarket e.g. Link or Haltech (obviously knowing there's no pump that does stock and 500Kw, end game goals are 250Kw-275 if I get greedy). 
 
In 2020 are the Walbro 255 and Supra TT pumps still the best option for a stock upgrade? Also what components of the system can be upgraded without changing ECU, can I use bigger rail and injectors? I would have thought that might throw ratio's all the way out with the standard ECU as it would have defined variables for fuel management. 

Hi Matt,  why are you replacing your fuel pump ?
Is your fuel pressure weak? or AFR lean ?
 

It's fine at the moment but I don't know if its been replaced and its getting old so its prudent to think about it. There's a hesitation in acceleration at peak boost but thats potentially the boost solenoid.