3.5″ Polished Turbo Intake Horn Kit For 2017-2019 GM 6.6L L5P Duramax

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New 3.5″ Turbo Intake Horn for the 2017-2019 L5P Duramax. The OEM plastic intake horn is smaller and fragile compared to our 3.5″ Horn.  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



  • 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

Orders cannot be canceled after they’ve been placed. We use multiple third party fulfillment companies, distribution centers & manufactures. The logistics of coordinating a cancellation are not feasible.

Returns are accepted for most items. Returns must be made within 30 days of receiving item. Item/s must be brand new & resell-able condition. Customer is responsible for return shipping costs. Original shipping charges are non refundable.

Electronics that require custom tuning or are VIN specific cannot be returned and are non refundable. This includes EZ Lynk, SCT, Bully Dog & EFI Live.

Contact us for return instructions. Do NOT send to return address on original package. 

Availability – If you see “#” pieces in stock above the add to cart button it will ship within 1 business day. If there’s no quantity shown; the part is either built to order, ships directly from the manufacture or is temporarily out of stock. In that case, could take up to 20 business days to ship.

Free Shipping

on all U.S.orders.Applies only to the lower 48 states.

Same-Day Shipping

order before 3 p.m.EST for guaranteed same-day shipping.

12 Month Warranty

on all products. Be sure to ask for our extended warranty!

Easy Returns

Not the right part?Return it within 30 days for a full refund.