I've change mine out 3 times so far, never really had a problem with breaking a stud, im assuming you are refering to the bolts/studs that hold the exhaust manifold to the motor. I do think sean broke a banjo bolt somehow but he fixed it somehow, not really sure on the whole story around it. Whats your reason for wanting to change it out? Another blown t25? Took me 3 of them to figure out the t25 is not for me and topmount was the answer to everything wrong in the world.