My personal opinion on the spoon header is that it is a pile of ****. Its a mild steel header that will rust to hell eventually, you could probably pick up a 5zigen header. SPOON its just a name everyone is after dont ask my why ! ! ! most the stuff is ****.
That's not entirely true.
The primaries have always been stainless. The downpipe on the other hand was mildsteel at some point. They later revised this to stainless.
Whoever made it for them before probably won the contract and began producing them for Spoon as well as Vision.
SS is usually shiny...and mild steel has a dull finish.
Super sprint????
I always thought they were the worst headers for B16.