We designed and build these headers completely in house. Quality is above and beyond the standard you'll find on any other headers, even the bigger-named companies.
Headers include 3/8" lazercut flanges, 1 5/8" primaries, 2.5" secondaries, 3" outlet, v-band clamp connections, 3 O2 sensor bungs - 2 for the primary O2 and one extra for a wideband. Headers are ceramic coated with 1500 degree silver ceramic thermal barrier coating.

These headers are considered a custom order, as they are built to order rather than being a stocked item.  Typical lead-time on these headers depends is 8-12 weeks, but depends highly on current workload.  Contact mikem@milzymotorsports.com to inquire on current lead-time.