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Discussion Starter · #1 ·
For the folks that have install WMI, and installed the pump and tank in their boot/trunk; how loud is the pump in cabin?

Will it be constantly on in a primed state?
Or just on as boost comes on and the system engages?

I'm trying to see how much I'm willing to give up in comfort and NVH with a trunk mounted pump.
Perhaps, I could mount the pump in a "battery box," or similar to dampen the noise...

Thanks!
 

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I have the pump and solenoid in the boot... more specifically in the spare tire space since I removed my spare tire. The pump will only activate when it's actively injecting meth. All I hear is a muffled hum. That being said, it's only working at WOT so part of the noise is probably drowned out by my aftermarket exhaust. With a stock exhaust, the hum might be more noticeable.
 
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