while I cannot attest to it's performance just yet, as bought for the down pipe to converter flange pipe on a Mertop racing high flow cat setup for my 1.8t Audi TT, and have not installed it yet. The quality is fantastic, and the Grimspeed service was great as well, I have a second 2 bolt flange on my Malian rear catback system for the same car, should have ordered one for it, so will be doing that before the exhaust is installed for sure
THICCCCCCCCC GASKETS FOR YOUR TYPICAL RUST BELT CAR
LIVE IN THE RUST BELT OF THE UNITED STATES OR EVEN OUTSIDE OF THE USA? YOUR STATE OR PROVINCE LOVE TO POUR SALT ONTO THE ROADS LIKE MCDONALDS POURS SALT ON THEIR FRIES AND THEN YOUR GASKETS KEEP RUSTING OUT? GET YOUR TOP OF THE LINE THICCCC BOY GASKET THATLL REPLACE THE OLD BROKEN RUSTED POS GASKET THAT CAME WITH YOUR LOUD TIN CAN OF AN EXHAUST. AFTER TAKING 3 HOURS LONGER THAN YOU THOUGHT JUST TO SHEAR THE BOLTS THAT CAME OFF THE EXHAUST, SLAP THIS BAD THICCCC BOY ON AND TORQUE IT TO A GOOD 2 UGGA DUGGAS AND YOURE ALL GOOD TO GO.