The consummation of years of header building experience comes to life in these billet collectors. Precisely machined from a chunk of 304L stainless steel to exacting dimensions yields perfectly smooth flowing geometry for increased power and lower backpressure. The benefits are a much stronger part that will last years on the hardest running cars and flow better than their hand made counterparts. The open inlet design allows for easy welding of the entire perimeter of the primary tubes with the included collector star. Sold Individually Includes weld star Weld fixtures are available in all sizes
