No, Lots of us with stock exhaust have had hot start problems. I replace my starter with a heavy duty starter and heavy duty solenoid and enjoyed years of no problems. Replaced the solenoid many times...the problems always came back after a while.
Just get stuck one time and depending on where it happens...stalling in traffic somewhere, or simply stopping for gas and cant restart, it's a real problem.

You can possibly run forever with your setup, I got tired of my problems, and hopefully have fixed them.