My friend recently sold his 350z before he sold it he put an exhaust on, my stock 2003 base 350z's stock exhaust was beat. Futhermore he gave me his, tonight, i tried installing it, everything went fine until, I bolted it on, to my mistake i tightened the bolt too tight. the stud broke with the bolt, one stud is still intact and bolted. I was wondering, the harms of leaving my car like this or if it would be a problem?

 

Likely to cause an exhaust leak or might end up bending the other bolt. I'd take off whichever piece has the broken stud, hammer it out and replace it with a new bolt and nut. That's what I did with all the studs on my OEM Y-Pipe and Muffler, just makes life easier for taking it off.

 

...and??? those bolts should be couple bucks from local dealership or hardware store or homedepot or etc...

 

No problem. Broken bolts and half-*** fix. Its cool.

 

Yep, remove the bolt with and extractor, then pick up a new one at the harware store. You'll likely have to take the good one off and take it with you to the hardware store, so you can find a match...

 

The actual stud broke.