it's like a new car!
Well, my car was running kinda rough and developed a nasty exhaust leak. So I took it back to the exhaust shop, they checked it out on the lift and called me over. the left side cat was glowing red at idle!!
they pulled the plugs, all the left bank plugs were black and the right bank were all white!! turns out I had a vacuum T busted and it had a bad leak. all fixed, new T new plugs, and now no more cats and WOW!
it's like a new car. between the full dual exhaust (with flowmasters) and the marauder converter, this thing is a completely different car from when I first got it! what a difference! it really sounds mean too, nowhere near like a mustang either. it has a deep rumble and gets real raspy around 2,400 rpm under a load. mean mean mean!