Let me know how u go, when i replaced my EVO1/2 16G with the EVO3 16G, the 1 from the EVO3 dump was bigger and wouldnt fit on my exhaust, it was also rotated slightly
Since then ive always assumed the EVO1/2 dumps and EVO3 dumps arnt interchangable with the same exhaust
The flange from the dump to the J-pipe has a different angle. I dont concider them a bolt in.