BLOX Racing offers a full line of DIY performance parts. Wastegate flange gaskets are made from 1mm thick, single layer stainless steel and fit 38mm TiAL or Deltagate brands. With BLOX Racing Performance DIY products, the only thing holding you back is your imagination. Made in the USA. Gasket Specs 1-LAYER STAINLESS STEEL ID: 1.4” HOLE-HOLE: 2.8” 1mm THICK