no ive heard tilt the motor forward and go in from the top.
it all depends what excactly your getting welded together. the rear header and the crossover slide into the Y pipe. im guessing your putting those into the Y pipe then welding them shut??? if you weld the downpipe to the other end of the Y pipe, then thats alot of pipe to try and squese down there and get it into posistion. i would just bolt the downpipe on later, it seems to hard welded in place. its hard enough getting it into posistion. i wouldent really make it more complicated.
