🛠️ 3rd Gen HE351 Turbo Downpipe Flange – Mild Steel | Fits S300 Turbo (4.375" OD) This HE351 Flange is a mild steel weld-on flange designed specifically for use on 3rd Gen Dodge Ram trucks equipped with S300 turbos. With a 4 3/8" outer diameter, it’s built to match the unique outlet of HE351-style housings commonly found in performance diesel setups. Perfect for custom downpipe fabrication, the flange accepts 3.50" exhaust tubing inside the bore or can be welded externally to 4.00" tubing. Whether you're upgrading your turbo or replacing a worn-out flange, this component provides a solid, boost-tight fit for any high-performance exhaust build. 🚀 Key Features & Benefits:✅ Fits 3rd Gen Dodge Ram HE351/S300 Turbo Outlets✅ 4.375" Outer Diameter – Matches OEM-style flange profile✅ Weld-On Mild Steel – Ideal for custom fabrication✅ Works with 4.00" Downpipes or 3.50" Pipe (Slip-Fit Inside Flange)✅ Built for High-Boost, High-Temp Diesel Exhaust Systems✅ Perfect for Race, Tow, or Street Performance Builds 📦 What’s Included: (1) Mild Steel HE351/S300 Turbo Outlet Flange – 4.375" OD — 🔥 Custom exhaust? Start with the right flange. Weld it once. Seal it for good. Order your HE351 downpipe flange today.
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