5.3Notch

The 044 is the pump to beat, I cant think of why you would choose any other pump for performance. However they are loud.

stevieturbo

Definitely wouldnt say mine are loud. Nowhere near what the Aeromotive stuff etc are like.

But it is surprising, they've been in use for well over 20 years, they havent changed at all, and they are still the best performing pump out there.

xsboost

check out this link.

http://radiumauto.com/media/techarti...l-Pump-Test-87