What does a Stock Exhaust System look like?

[bulldozer]

I recently bought a 2000 VT Berlina 5.7L does any one have a photo of what a stock exhaust system on this model looks like? and what the stock pipe size is? and is stock a single or twin system?

my current system is twin exhaust system (twin cats) and the pipes are black.

are there ways to tell if a system is aftermarket? e.g. do stock systems show weld pints?

[wana s' charge stock vt]

they are twin stock, 2.25inch and are silverish new or usually rusty color, and they have holden stamped on the center mufflers.. also have a H pipe just after the cats( just a little pipe that joins in between the two).. most after market one have a X section just after the cats instead....

[dylanstone]

if its not rusty its generally an aftermarket set up :P

[wana s' charge stock vt]

stock ones are similar to the shinny one on the bottom

[bulldozer]

Thanks for the responses... it seems my exhaust system is stock after all.

FYI
They're 2.25inches, but there is no holden logo stamped on the centre mufflers (might be i just didn't see it coz they were dirty), and also there is no H pipe connecting the 2 pipes any where along the system... there is however a piece of flat metal that holds the pipes together just before the cats (if starting from the front of car). The 2 pipes never connect directly to each other (x section or H section), they're about 1-2 inches apart the whole way. And lastly... they're rusty lols.

[wana s' charge stock vt]

sounds wierd, cant say i've ever seen one without the balance pipe.. might be an aftermarket standard one. just a new one but not a sports exhaust....