Originally Posted by phunk

If you did not entirely cut the filter out, and merely bypassed it, then you can put it back how it was and be good to go.

If you did fully chop it out irreversibly, you are not in the best of shape at the moment. When the stock regulator is eliminated, you still have to send bypass fuel into the same port that the stock regulator did. This is to keep the venturi pumps active. We produce the custom fitting for doing this, and we are currently out of stock on them for a couple weeks. You could build a custom return kit but without our return conversion hardware you will have inactive venturis and not be able to run the car below 1/2 - 3/4 tank.