Originally Posted by SSEBONNE4EVA
maybe it needs one of those converter cleaner additives.
Strange how there is no smell in the forward gears, even while idleing at a light.
It probably does do it, you just don't notice it. I agree with CC, it'* more noticable when you're backing up because you're driving through the exhaust fumes.
Maybe now is a good time to upgrade to a high flow cat? Get a Magnaflow.
I doubt the additive will do much for you. I don't put much faith in the "mechanic in a bottle" fixes....