Smith Innovations is now offering a 1/2" laser cut header flange for the Suzuki g13b DOHC engines. These are in 1/2" 304 Stainless Steel, ports are 1.375" I.D. The EGR port is not cut and will need to be drilled out for emissions reasons.
These are not deburred to help keep costs down.
Designed and cut in the USA!
Not the size your looking for? Just ask! We can cut this in any size!
The main Image is of our current mild steel flange that we have with 1.375" ports