John Deere Flange - S300 Marmon

🛠️ S300 Borg Warner 20° Tapered Downpipe Flange – Mild Steel | Fits Deere-Style Marmon Outlet

This S300 20° Tapered Downpipe Flange is designed specifically for Borg Warner S300 "box unit" turbos with the John Deere-style Marmon exhaust outlet. Precision-cut from durable mild steel, this flange features a 20° taper to match the angled turbo outlet, making it ideal for fabricating custom downpipes that flow smoothly and seal reliably.

With a dual-diameter design, 3.50" exhaust pipe fits inside the flange I.D. while 4.00" tubing can be welded around the O.D., giving you versatile fabrication options based on your build.

🚀 Key Features & Benefits:
✅ Fits S300 Box-Style Borg Warner Turbos with John Deere-Style Marmon Outlet
✅ 20° Tapered Design – Matches turbo exhaust angle for cleaner fabrication
✅ Mild Steel Construction – Weldable and cost-effective for custom builds
✅ 3.50" Pipe Fits Inside I.D. – 4.00" Pipe Fits Outer Diameter
✅ Perfect for High-Flow Custom Downpipe Fabrication
✅ Optional V-Band Clamp Available – Add it in product options

📦 What’s Included:

• (1) S300 20° Tapered Downpipe Flange (Mild Steel)

• (Optional) Matching V-Band Clamp (select in product options)

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🔥 Build it strong. Seal it right. Connect your S300 turbo to your exhaust with confidence—add this flange (and clamp) to your cart today.