Our LS1 headers are made out of 321 Polished Stainless Steel. The highest quality stainless you can make exhaust parts out of. They feature an over sized flange for better gasket sealing. They are 1 3/4" primaries with a 3" High Velocity Merge Collector with an internal merge spike. Our Y pipe is also 3" with a siamese merge. We have also include an exhaust mount on the drivers side of the Y to stop that Y pipe banging the floor:)
If you buy the headers and either Y or the true duals we will give you a $50 discount.
After you checkout we will issue you a $50 refund.