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My 044 seems to vary. When cold it's very quiet, almost as silent as the factory pump. But as it heats up (dependant mostly on weather) it gets louder. I'm hoping it just needs to be "broken in" and it will gradually get quieter with usage. It's only done a couple of thousand km so far.

Either way a moderately loud stereo drowns it out completely, whether hot or cold.

  • 8 months later...

Whats the overall verdict on the Walbros? Are they cheap pieces of crap, or ok for reasonable setups as long as you take into account the flow being rated at non-boost pressure ?

Who is actually using them for good effect? Curious to know.

If you have an aftermarket exhaust you would be hard pressed to hear a Bosch - I wouldn't let it affect your decision to get one.

I guess so. I had my tail silencer on for everyday use, that's why I hear it hums loud and clear. But i'm having a bit more annoying noise from the rattling fmic pipe as it seems to be touching the body where it went thru under the airbox.

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