3.5" Stainless Steel Turbo Intake Horn Kit for 2017-2019 Chevy GMC Sierra 2500HD/3500HD 6.6L L5P Duramax
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Description
The 3.5" Turbo Intake Horn for the 2017–2019 GMC Sierra 2500HD/3500HD and Chevy Silverado 2500HD/3500HD 6.6L Duramax L5P replaces the fragile OEM plastic turbo inlet with a stronger, high-flow design. Made from durable stainless steel, this intake horn increases airflow, improves durability, and is compatible with both stock and aftermarket turbos. A direct-fit upgrade to the smaller factory intake horn for enhanced reliability and long service life.
Features:
100% brand new, Never been tried or installed
Color: Black/Polished
Size: 3.5"
The OEM plastic intake horn is smaller and fragile compared to our 3.5" Horn.
Material: 304 Stainless
This intake horn does not require tuning for installation.
No tuning required for installation
Will fit with OEM or any aftermarket intake.
Will fit on stock truck no modifications needed.
Professional installation is highly recommend.(No Instruction Included)
Fitment:
Color: Black/Polished
Size: 3.5"
The OEM plastic intake horn is smaller and fragile compared to our 3.5" Horn.
Material: 304 Stainless
This intake horn does not require tuning for installation.
No tuning required for installation
Will fit with OEM or any aftermarket intake.
Will fit on stock truck no modifications needed.
Professional installation is highly recommend.(No Instruction Included)
- 2017-2019 Chevrolet Silverado 2500HD/3500HD 6.6L L5P Duramax
- 2017-2019 GMC Sierra 2500HD/3500HD 6.6L L5P Duramax
- Will not fit aftermarket turbos
| VEHICLE NAME | Year | Engine |
|---|---|---|
| Chevrolet Silverado 2500 HD | 2017~2019 | 6.6L |
| Chevrolet Silverado 3500 HD | 2017~2019 | 6.6L |
| GMC Sierra 2500 HD | 2017~2019 | 6.6L |
| GMC Sierra 3500 HD | 2017~2019 | 6.6L |
Shipping & Returns
SHIPPING & DELIVERY
Fast Processing & Reliable Transit
- Processing: Orders are processed and shipped from the nearest warehouse within 24 hours.
- Delivery: Estimated delivery time is approximately 4 to 5 business days.
RETURNS & EXCHANGES
30-Day Hassle-Free Policy
- Return Window: We offer a 30-day return policy from the date of delivery.
- Process: To initiate a return or exchange, please contact our customer service team first to receive authorization and instructions.
WARRANTY
2-Year Limited Replacement Warranty
- Duration: All products are backed by a 2-year limited warranty.
- Coverage: This warranty covers manufacturing defects and product failures under normal use, and provides a replacement for qualified cases (repairs are not performed).
CUSTOMER SUPPORT
We’re Here to Help – Contact Us First
- Priority Contact: For any order-related issues—including returns, warranty claims, or general inquiries—please contact us first before taking further action. We are committed to resolving your concern promptly.
- Feedback Notice: If you are unsatisfied, we kindly ask that you allow us an opportunity to address the issue before leaving neutral or negative feedback.
- Email Support: You can reach us at support@SAMEXHAUST.com.
3.5" Stainless Steel Turbo Intake Horn Kit for 2017-2019 Chevy GMC Sierra 2500HD/3500HD 6.6L L5P Duramax
Attention
Products on this site are for off-road/racing use only and are not legal for public roads where emissions laws apply.
Professional installation recommended. Removing emissions equipment (DPF, CAT, SCR, DOC) requires deleting related sensors and a compatible tuner to avoid engine codes.
Performance gains may vary—no guarantees.

