@dlearl476 posted:Only when it's running way too rich!
Mellowed we'd out the exhaust note quite a bit, and keeps to soot off the tail end.
I hear that!
I bought a 3" mild steel exhaust extension from Jeg's, and made a one bolt clamp on it. Inside, I welded a Vortex cone insert. Zero back pressure increase, but takes the edge off the exhaust while idling, but especially during cruise. Plus keeps the soot off the car!