GM Duramax L5P 6.6L Turbo Intake Horn (2017-2025)
SKU: IP-TIH-GM-L5P-DPF
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Product Description
The GM Duramax L5P Turbo Intake Horn is a high performance replacement for the plastic factory turbo inlet on 2017 to 2025 GMC Sierra and Chevy Silverado HD trucks with the 6.6L Duramax L5P engine. It is built from steel with a black powder coat finish and is made to improve airflow and durability while working with both stock and aftermarket turbos.
Vehicle Compatibility
- Years: 2017-2025
- Makes: Chevrolet Silverado, GMC Sierra
- Models: 2500HD, 3500HD
- Engine: 6.6L Duramax L5P (diesel)
- Body: Pickup
Key Features
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Upgraded Construction: Swaps the OEM plastic turbo inlet for a black powder coated steel piece that stands up better to heat, cracking and long term use.
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Improved Airflow: Shaped to cut restriction and move more air into the turbocharger for sharper response and performance.
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Drop-In Fit: Direct replacement for the factory turbo intake horn with no cutting, no tuning or extra fabrication needed.
Benefits
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Enhanced Durability: The factory plastic inlet can turn brittle and crack as heat and age build up. This steel piece is made to stay solid in tougher use.
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Performance Gain: More airflow into the turbo helps spool stay sharp and can add power, especially when other upgrades are on the truck.
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Compatible with Stock or Aftermarket Turbos: The intake horn bolts up to the factory turbo or a common upgrade unit, so you can use the same part either way.
Frequently Asked Questions
What does the L5P Turbo Intake Horn do?
The L5P Turbo Intake Horn increases airflow into the turbocharger by replacing the restrictive factory plastic inlet. This helps the turbo spool faster, improves throttle response, and enhances overall engine efficiency under load.
Is this intake horn compatible with my 2017-2025 Duramax?
Yes. It fits all 2017-2025 GMC Sierra and Chevy Silverado 2500/3500 HD trucks with the 6.6 L Duramax L5P engine. It bolts directly to the turbo in the factory location with no cutting or fabrication.
Do I need to tune my Duramax after installing this intake horn?
No. The intake horn is a true plug-and-play upgrade that works perfectly with stock engine calibration. No tuning, extra parts, or electronic adjustments are needed.
What material is the L5P Intake Horn made from?
It's constructed from high-strength steel with a black powder-coated finish. This makes it more resistant to heat, cracking, and long-term wear compared to the factory plastic inlet.
Will this intake horn work with aftermarket turbos?
Yes. It's compatible with both stock and aftermarket L5P turbos. The design ensures proper alignment and flow whether you're running the original turbo or an upgraded performance unit.
What kind of performance improvement can I expect?
Expect quicker turbo spool-up, better throttle response, and smoother power delivery. The gain is most noticeable when towing or accelerating under load and can complement other airflow or tuning upgrades.
Why replace the stock plastic turbo inlet?
The factory inlet can crack or warp from engine heat over time, causing boost leaks and uneven performance. The steel intake horn eliminates that weak point, ensuring steady airflow and long-term reliability.
Is the L5P Turbo Intake Horn emission-free?
Yes. It doesn't remove or modify emissions equipment. It simply replaces the stock intake horn with a stronger, better-flowing version making it a street-legal durability and performance upgrade.