Originally Posted by meh03

NW does have an adjustable regulator that can be installed as long as you install a non regulated filter. I've read on here the stock pump will flow enough with that added. However, I have also read several that have added the SL55 pump and that solved the problem.


Those two conflict. If you install the SL55 pump, you still are limited by the stock filter's regulator. The only way that makes sense to me is if the stock pump is falling off at higher RPM's and the SL55 will still flow as much as the filter will allow which is why it helps.