I hope so as thats what i purchased it as lol, i have contacted Kanter auto who now own or merged with PST, to find out the spline size. I can also see if the standard coupler fits it once i pull the saft out. If it does then its 3/4. Either way mate the pipes now fit with clearance. If i have to buy a 3/4 so be it as happ as knowing i dont have to rebuild pipes haha