I cut it off by hand with a hack saw. I did this very carefully and very slowly. I then sanded both the riser, flange and tubing addition with 120, 220, and finally 320 sandpapers and a large flat piece of acrylic for a sanding block. I glued it all back together with weld-on 4.
The greatest advantage I feel this mod gives me, is that I can run more air and have no worries of overflow issues. If I were running a larger pump, I wouldn't be using a smaller injector. (Instead of looking at it like I'm running a clogged injector, I'm looking at it like I'm overdriving a smaller injector. This has improved performance for me much the same way as using large pumps through the 3/4 injector. I'll run it like it is for a while, but may at some future point clear out the injector and use the GenX PCX30 that's in my closet.
FWIW, the eheim 1262 would probably be perfect for this (as with regular ev180's and ev150's) :thumbsup: