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:
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(1) S300 20° Tapered Downpipe Flange (Mild Steel)
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(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.
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John Deere Flange - S300 Marmon
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Are OEM products more expensive than aftermarket alternatives?
OEM products might have a higher upfront cost compared to aftermarket parts, but their superior quality and durability often make them a more cost-effective choice over time. Investing in OEM ensures you’re getting parts specifically designed for your vehicle, which can lead to better performance and longevity.
Can I purchase OEM parts online or do I need to visit a dealership?
You don’t need to visit a dealership to get OEM parts. You can conveniently purchase genuine OEM components from authorized distributors and reputable online retailers like Turbo Tech Performance. Our online store provides a wide selection of high-quality parts delivered straight to your door.
Are parts from brands like Mopar, ACDelco, and Motorcraft interchangeable between different vehicle brands?
No, parts from Mopar, ACDelco, and Motorcraft are typically designed for specific vehicle brands. It’s crucial to ensure compatibility with your vehicle’s make and model by checking part numbers and consulting with a knowledgeable expert.
Can I install OEM parts myself, or is it better to have a professional handle it?
While some OEM parts can be installed by DIY enthusiasts, the complexity of installation can vary. For the best results and to ensure proper fitment and performance, we recommend having a trained mechanic install the parts, especially if you’re unfamiliar with automotive repairs.
Do OEM parts come with a warranty?
Yes, many OEM auto parts come with a manufacturer’s warranty that covers defects or issues. Be sure to check the warranty details for each part at the time of purchase, and keep your receipt for any potential warranty claims.