Hi everyone!

I just ordered the Flowmaster 942040 muffler 2" center in/out...but now have second thoughts after talking to the muffler shop that I go to, cause they said it's gonna be a tight squeeze. I suggested turning it vertical as Northguest47 has his...the guy said it might work.

But now I found a muffler that I like and may get this one instead....Manzo USA Universal Type Muffler - Turndown / Dropdown Style Tip - 2" Inlet
The only thing I wonder is how would I secure the muffler in the very back?

Any suggestions?