Exhaust Manifold Hardware Kit (12 studs & 21 nuts)
Your Exhaust hardware has most likely had a hard life. These are updated OEM studs and nuts that have a #8 inverted torx tip for easy installation. If you’re replacing/rebuilding the head or engine this Exhaust Manifold Hardware Kit is a must have.
This kit has 12 studs and 21 nuts which will replace all the exhaust nuts and only 12 Studs for the Cylinder heads. The 12/21 kit adds 9 more nuts for the cross over pipe. We don’t recommend replacing the 3 studs at the back of each exhaust manifold or the 3 at the bottom of the cross over pipe. If any of those studs are damaged or come out with the nut, only replace those. It is a very difficult location and that is why we recommend you not replace if not needed.
Stud – 10mm x 50mm long with #8 inverted torq tip
Nut – 10m Lock Nut