This is a direct replica of the HKS version of the flange.  This is our answer to the overpriced and under stocked HKS flanges.  Our current one (shown in pictures) is made of the 1020 carbon steel.  Shortly we will be offering it in 356 aluminum and 304L Stainless Steel.

  This is a Invest cast product, made the exact same way our BOSS housing, turbo elbows, afm, etc. etc are made. 

And of Coarse  Made completely in the USA by LIPP