Performance Headers are constructed with 1 3/4" 16 gauge 304 stainless steel with 3/8" flanges to prevent warping. The use of back purge TIG welding and mandrel bends creates the strongest headers with the most efficient airflow. They feature equal length runners and merge style collectors for increased scavenging.  The materials and craftsmanship are impeccable.  Z1 headers are the nicest headers available for your VQ Powered Z.

NOTE: These headers are built to be a direct bolt on to the VQ35DE, however they can be used on 07+ VQ35HR and VQ37VHR engines with the use of Stock DE Catalytic Converters, Z1 High Flow Cats, or Z1 Test Pipes, optional below.