GSC P-D Viton 6mm Valve Stem Seal Set Subaru WRX / STI EJ Series 2002-2021

The product is great. The shipping however is a bit over the top. The product could fit in a small envelope, bbur it cones it a medium sized box and is stuffed with an enormous amount of paper. I thought theater was missing until going through all the paper and finding the item at the bottom.

All in all, great product.

work just as good as oem

Can't beat these valve seals on your high hp build just getem!

If you’re looking for TOP NOTCH components for your heads, look no further. GSC Power Division makes superior products that you can trust. When you’re looking to make serious power in a Subaru, +1 valves are the way to go, especially with the addition of a bigger cam. By adding GSC’s valve stem guides and viton seals, you also get better airflow and a sure fire seal. If you’ve got your engine out, or are building, just do it.

A no brainer since the oem are roughly the same price might as well go ahead and get these.

If you are looking at Valve Seals, you mind as well. Chances are you need them. GSC provides proper performance and seal with these, for the extra $13 you will definately get your moneys worth and heads as well as engine longevity!