While out at SAAC-27 the number of cars running X-pipes far outweighed the number who weren't.
HP is king at these events.
You can easily hear them, because the exhaust tone makes them sound as if they were sporting a few thousand rpm's more than they were really turning.
Add a set of Flowmasters and it makes some interesting NASCAR kinda sounds.
I love it.
Some old timers (ok, I'm an oldtimer, but I don't keep my head in the sand) hate it because it takes away the low rumble a bit...but that sound at hi rpms is just flat unique.
I'm thinking of adding em to the Boss302. I will run them on the restomod.