Mijae007

Exactly what riceball777 said. The stock wires simply don't cut it for any aftermarket pump. And the 255 is outdated technology. Just go with the walbro 450 or 525 WITH the sos rewire kit. The last thing you want is for your wires to melt inside the tank and potentially spark and your entire car go up into flames. Go on their website scienceofspeed.com and look it up its not that much. And i know where you're coming from about the wiring ordeal. I felt the exact same way but the kit comes with very detailed instructions along with pictures. Buy yourself a soldering gun and you're good to go.

Sales pitch: I have a used aem320 pump for sale. $60shipped. There's nothing wrong with it. Replaced it for a larger pump thats all. This pump primes loud when you turn your key on to ignition, but then operates just like the others, quiet.

kumar75150

I'm making 530whp right now with the AEM 320 and SOS rewire kit. I'm not sure why you're so against rewiring. It's not like you're wiring something complex like a Motec harness.

riceball777

like i said rewiring of the pump should be done with any after market high flowing pump even with the walbro 255. The stock wires simply is not of a big enough size to supply to supply the pump with the power it needs. The sos wiring kit is cheep and is the best kit that is specially designed for the s2000. I have no idea why the walbro 255 is the only pump that is loud but it is loud and there is zero point is using this pump when there are much better options out there at almost the same cost. When driving fast you probable wont hear the 255 but when driving slow and at idle you will hear it.

RolanTHUNDER

I definitely don't want that to happen. Does the AEM 320 need a special bracket or is it a drop in filter?

RolanTHUNDER

Against it because I'd prefer plug 'n play, drop in and be done with it.

RolanTHUNDER

I checked out the SOS site. The wiring kit is fairly cheap. If the 255 sounds as loud as you described and in those conditions then I'd rather go for one of the other sizes you mentioned.

ninetysixyenko

Ever thought about getting a surge tank? considerably more money, but prewired, don't have to get into the tank, will support more than you need, and has the added benefit of no cavitation.

RolanTHUNDER

Can't say I have. It's not a problem to install an appropriate pump so I'll just go that route. Thanks for the suggestion though

RolanTHUNDER

Can I trust a "universal" pump?? Check this out: https://treperformance.com/i-2389963...fuel-pump.html

Mijae007

No such thing. Out of the entire install fuel pumps require the rewire kit. Trust everyone here thats already been there done that its a good security to have. Plus it wont ever starve the pump of power causing it to dysfuntion. Like i said theres a member here whose wires and connector melted due to the heat that was generated by the stock wires...its not too crazy to think this problem couldve led to a small spark and fire in your fuel tank.
edit* you could use the 255 with stock lines and it would work but the technology in that pump is a bit dated. Its loud and doesnt leave you with any room to grow.
Ap1 and ap2 have different part numbers. Make sure to get the right one for your MY.