These are the header collector tubes that bolt to the cylinder head. The new #2GRFKS motor has the exhaust manifold made into the cylinder head and this is basically the collector of the manifold.

COMPLETELY BOLT-ON and larger cast opening than stock. 304 stainless castings with 304 stainless 2.25"? tubing.

Available with optional Black Ceramic Coating.
Available with GESI EPA cats or PPE Sport Cats

• All products are RACE ONLY and manufactured and sold for installation on vehicles to be used solely for competition purposes, which, once installed, may never be used, or registered or licensed for use upon a public road or highway.
• If you install this part on your vehicle and use that vehicle on a public road or highway, you will be considered in violation of the Clean Air Act and personally subject to a civil penalty of $4,454.