NYPPD 4" in inch V Band V-band Flange Metal Gasket Stainless Steel Turbo Exhaust ~ Band flanges can sometimes slightly warp during welding and allow small exhaust leaks ~ Easy way to ensure these sort of leaks are prevented is with our new v-band sealing gasket ~ Made from thin soft steel ~ These gaskets squish to conform ~ They smooth uneven surfaces ensuring a tight seal.