Muffler Removal

[davidbrady]

It's looking good Chuck!

Yes, definitely go with flexpipe, the original double-ball socket flex never worked very well. It develops rust which prevents movement and it inevitably leaks where the cup and ball sockets overlap.

I wouldn't insulate the engine walls. If you open a cabinet in the interior you'll see that BB covered the exterior of the chase with blow-on expandable insulation. With no insulation there will be an air gap between the muffler and the interior walls of the chase. After a hot run the chimney that the air gap creates allows for efficient ventilation and cooling of your engine compartment. I've been on my roof after a hot run and the wind (convection currents) blows out the top of the chase as if there's a fan running!