I've used the Walboro 255 with stock lines/regulator and an analog fuel pressure regulator gauge right in the engine bay. No spikes, even when the pump is "hotwired" and the engine is off.
I have a used 200lph walboro. It’s got maybe 15-20k miles on it. Was 100% functional without issue when I pulled it.
Buy a Walbro brand replacement pump for your truck and youll never buy another pump again.
I used a Wallbro, have had very good luck with it.
I've never had issues with genuine walbro pumps, took me well over 500hp reliably on several vehicles.
Got my Walbro Hellcat 525LPH in last night, there's definitely been a noticeable change in how the car behaves. On the FPR side, I had it set to 3bar with my stock pump in, the 525 instantly shot it to over 60psi with the same settings.
I used a Wallbro, but I think they make the Delco's.
I had my inline pump next to the fuel filter and it was way too noisy, ended up moving it to the engine compartment and fitted it inside some 3" tubing with insulation around it, just a slight whine at idle can be heard and none as you are driving
I have a high flow Walbro unit that I regret installing because of the constant noise it makes. Unless you need to support super high HP numbers with a modded engine, go with an OEM fuel pump. I will just have to live with my loud pump because it is way too much work to drop that tank again!
I personally wish I went with a non walboro option for what it's worth. Just annoying loud on low tank.
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The WALBRO brand is registered in USA. Official website: https://www.walbro.com/ .
In March 2026, PartReview recorded 27 reviews across 1 part by WALBRO. Average rating — 4.0 out of 5.
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