Hello, new to the board, love all the xcellent info. i hav a 93 TA M6 with 70,000 miles. Well to shorten my problems up im in the middle of an opti / water pump swap cauz my pump took a dive on me.. leaking from the weep hole and by the bearings... the cooling system had been really neglected be4 me, but now that i have everything off and new fel-pro seal kit the opti seal is an easy swap actually the exact same "National" part number on them n everythign but the wp seal looks just fine and i can't get the coupling off easliy either so im debating to just leave it and replace just the wp shaft o-ring Also while im waiting for the otpi to arrive im doing the tb bypass and removing the EGR/AIR systems.. AIR to clean up the bay and EGR because of the following reason Rear Intake Leak Which i also have but have to get to that maybe next week. But my problem here is that the air fitting in the drivers side exhaust manifold wont budge for ANYTHING... if i just reconnect the divertor valve to the pipe fitting will it leak?? I have the M22 plug from napa for the pass side egr hole. Thanks