This flange is used in our Audi TT 225 & Mk4 1.8T K04 downpipes. It is CNC machined from 3/8" thick 1018 cold roll steel to precisely fit the K04 turbocharger. The center hole is machined to accept 3" piping. We are offering this flange separately for those who want to build a custom downpipe for their K04 equipped motor. Gaskets are available separately.
OEM K04 Turbo Gasket
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