Help me find this exhaust :(

[steve181]

Billings Full Race Exhaust
i cant seem to find it

sound clip: best from 1:15-end
http://www.youtube.com/watch?v=HCa5ntHw9X4

love the sound, quiet @ low rpm's then mean @ higher rpm's

[TRX01]

never heard of that brand, but yes it does sound pretty good