T3 To T3 Turbo Flange Adapter With 38mm External Wastegate Port - Cast Iron Manifold Conversion

About This Product

Hey turbo builders! Need to connect a T3 turbo to a T3 manifold AND add an external wastegate? This adapter flange does exactly that. It's a solid cast iron piece that bolts right between your T3 turbo and T3 manifold, and it's got a built-in 38mm wastegate flange so you can plumb in your external gate cleanly. Perfect for custom setups, engine swaps, or when you're upgrading to a bigger turbo and need better boost control.

✅ What It Is: Basically, a thick, durable adapter (2.4\ tall, 4.7\ wide) made from high-quality cast iron. One side is a standard T3 flange that mates to your turbo, the other side is a T3 flange for your manifold. Right on the side, there's a 38mm V-band or flange (check pictures) for your external wastegate. It lets you route exhaust gases to the gate efficiently, which helps with precise boost management and prevents creep.

🔧 Install Notes: Direct bolt-on—no cutting or welding needed if your setup is already T3. Just use the right gaskets and high-quality bolts. Make sure your wastegate clears everything else in the engine bay. The cast iron can handle serious heat, so it won't warp or crack like cheap steel might.

🏎️ Why Use It: If you're doing a turbo upgrade or custom manifold and want to run an external wastegate (better boost control, especially with high-power builds), this adapter simplifies the plumbing. It's way cleaner than trying to weld a gate flange onto your existing manifold. Saves time and looks pro.

⚠️ Check Fitment: Confirm your turbo and manifold both use standard T3 bolt patterns. The wastegate flange is 38mm—standard for many popular gates like Tial. Measure your available space; it adds about 2.4 inches to the overall turbo/manifold stack.

A must-have piece for serious turbo projects. Makes your build cleaner, more reliable, and ready to handle some real boost.

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