Note - Exhaust Flange nut torque spec's:
| Front: 14 ftlbs
| Rear: 17 ftlbs
The OEM exhaust gaskets are Yamaha part # 3EG-14613-00-00.
Fel-pro makes an extremely similar gasket, which is part # Fel-Pro 23588. The Fel-Pro gasket should be available at most AutoZone and Advance Auto Parts stores.
NOTE: 1 forum member found that these gaskets were leaking when used with Hard Krome 3" Big Straight exhaust. Going back to OEM gaskets solved his popping problem. Keep this in mind when trying these gaskets. But this can also happen when installing the pipes to the head and not carefully squaring the flange to the head mating surface (especially with aftermarket pipes). Just be very careful about fitting the flanges up squarely and tightening the nuts, alternating from one nut to the other, gradually snugging them up, until reaching the specified torque.