are you sure they are both cats. some exhaust systems have a resonator after the catylitic converter to help with sound deadening
The cats (3) are located on each exhaust manifold and on the exhaust pipe after the Y pipe.
Most oxygen sensors are in the exhaust pipe....between the exhaust manifold and the catalytic converter.
by having a exhaust shop weld on a y pipe then just run the dual pipes out the back
true dual exhaust would mean that each pipe would be atached to an exhaust manifold of its own. It might be a v6 or v8 or as in the old days an inline 6 whith a split manifold was popular.
It might have something to do with emissions Most likely, you'll see one or two charcoal boxes, and this pipe will be part of the smog pump assembly. It shouldn't be a direct connection between the carb and the exhaust.
It can be a I4 or a V6. If it has dual exhaust it is a V6. If it has a single exhaust pipe out the back it is a 4 cylinder.
An X pipe is a modification for a dual exhaust. As far as I know all the V6 Mustangs have a single exhaust... So no.
The more air that moves on the final stroke of a combustion cycle, the better the performance. If the single pipe from the engine is large enough, then yes, it can outperform an engine with a true dual exhaust with smaller pipes.
If it has dual exhaust pipes it is a V6. If it has a single exhaust pipe it is a 4 cylinder.
V6, shorty headers, y pipe, single 2.5-3 inch exhaust v8, shorty headers, true duals, x-pipe, 2 - 2.5 inch exhaust depending on mods.
V6 Dakotas come with "dual exhaust manifolds". If your asking about exhaust systems, all I've seen are singles in and out or single in with dual tips (mufflers). The pipes to the mufflers is Y-pipe to single.
He _----- --- --- -- the _------ ----. He burned his lips on the exhaust pipe.