After designing our 1-7/8" headers we were contacted about possibly building a set with 2" primaries and 3.5" collector outlet. So you ask for it, here it is. These headers are for racing applications only as they DO NOT clear the alternator. They require a tubular k member as well as engine plates. These headers were designed for a NMRA Renegade Mustang with a 16V electrical system and a big positive displacement blower! Like all our headers, they feature laser cut 3/8" stainless flanges with high quality stainless 2" primaries and feature a 3-1/2" outlet stainless collector! Check Options list below if you would like us to weld V-Band assemblies to your headers before shipping. They are built to order so please allow 3-5 business days for these to be completed and shipped. If you have any questions feel free to contact us.