Update:
[quote=Mean buzzen half dozen A.K.A. Hank]I thought everything Bora made was made of good stainless material, Not rusty 409 stainless?
MBHD: The magnet sticks to the header flanges but not the pipes.
So, steel flanges and 409 for the pipes?
Chevy2inreno: Borla confirmed they were made for UPS trucks.
