4.00" - 5.50" X 4.00" LENGTH REDUCER
🔥 4.00" to 5.50" Silicone Reducer Boot – 4.00" Long, 5-Ply High-Temp Reinforced for Diesel Boost Applications
This heavy-duty 4.00" ID to 5.50" ID silicone reducer boot is engineered for extreme boost, high heat, and the rigorous demands of diesel performance. With a 4.00" length and 5-ply reinforced high-temperature silicone construction, this boot provides unmatched strength, flexibility, and sealing power for custom intercooler, intake, and charge-air piping setups.
Ideal for compound turbo configurations, large-frame turbos, and high-flow intake systems—this reducer boot ensures a secure connection where it matters most.
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🔧 Key Features:
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Inside Diameter: 4.00" to 5.50"
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Overall Length: 4.00"
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5-ply reinforced high-temp silicone for strength and durability
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Strength-tested to withstand high-boost diesel applications
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Resists heat, pressure, oil, and vibration in extreme environments
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Smooth interior finish for unrestricted airflow and easy installation
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Perfect for compound turbos, large intercooler setups, and custom fabrication
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📦 What’s Included:
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1x 4.00" to 5.50" x 4.00" High-Temp Silicone Reducer Boot (Black)
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Built to handle the pressure—this reducer boot is the go-to solution for serious diesel and racing builds requiring reliable, high-flow connections.
Pairs well with
Ships within 1-2 business days.
Free shipping & returns
4.00" - 5.50" X 4.00" LENGTH REDUCER
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FAQs
Please read our FAQs page to find out more.
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.