I ALMOST NEVER POST BUT THOUGHT THIS WAS A GOOD ONE. I TOO HAVE THE WALKER MUFFLER AND LOVE IT. IT IS A BIT LOWDER BUT WAS A QUICK EASY INSTALL AND OBVIOUSLY MAKES A DIFERENCE. ON MY FIRST F250 I HAD A FLO PRO REPLACEMENT INSTALLED AND IT DID WELL BUT COST NEARLY TWICE AS MUCH. THE WALKER HAS DONE WELL FOR ME.
