Heh, sorry to let you down Frank818 but I drove my new exhaust with cat and rear-exit tail pipe and although the exhaust smells much CLEANER, there is still gobs of it coming into the cabin. Most of it seems to be coming through the engine humps which I haven't blocked off yet. Pearldrummer - do you have the engine hump block-offs installed? I'm wondering how much of a difference it will make. The area under the engine cover on the sides where it comes to meet the door isn't sealed off either so there WILL be fumes coming in now matter what.