LB7 Duramax 63.5mm Supercore
63.5mm Supercore Turbo Upgrade – Fits 2001–2004 LB7 Duramax (Works with Factory Exhaust Housing)
Upgrade your 2001–2004 LB7 Duramax with this brand-new 63.5mm Supercore turbo assembly. Designed to work with your factory LB7 turbine/exhaust housing, this drop-in supercore offers a performance boost without the full cost of a complete turbo replacement—making it one of the most cost-effective power upgrades on the market.
Built for reliability and performance, this upgraded unit features a 63.5mm 6-blade billet compressor wheel and a 10-blade turbine that improves exhaust flow, enhances spool characteristics, and delivers a sharper, louder whistle. Capable of supporting up to ~640 HP (with proper fueling), it's the ideal solution for daily-driven trucks, mild towing, and street performance applications.
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🔧 Key Features:
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New 63.5mm Supercore – drop-in upgrade for LB7 Duramax
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Fits factory 2001–2004 LB7 exhaust turbine housings
- 63.5mm 6-Blade Billet Compressor Wheel – improved airflow & response
- 10-Blade Turbine Wheel – better flow, signature sound
- Stock-like spool characteristics with reduced turbo lag
- Lower EGTs under load
- Increased whistle and turbo presence -
Supports up to ~640 HP with supporting modifications
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Ideal for budget-minded builds, daily driving, and mild performance use
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Upgrade your LB7 without breaking the bank. This Supercore turbo unit gives you the power, sound, and efficiency of a full turbo at a fraction of the price—while keeping your factory exhaust housing.
Pairs well with
Ships within 1-2 business days.
Free shipping & returns
LB7 Duramax 63.5mm Supercore
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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.