What cobra?
Look, that not exactly a good goal.. imo.
The cobra, be is stock.. is gonna have stock exhaust on it.
If it was a modded cobra... well then u need its mods.
Also remember, heads, intake, and cam can change the sound of a car A LOT, regaurdless of the exhaust set up.
Oh, the cobra HCI is completly different than a stock 5.0l gt. So, meh. its all a mute point.
From my experience... Flowmasters dumped sound like garbage.. i ran that set-up for a year and finally decided to buy tailpipes.. WOW, its 100% better now.. i can't believe I wasted my time with dumps in the first place.
So, in my honest opinion.. put some tailpipes on there... you will be surprised.
Btw.. this is really tech.