HSP Diesel Max Flow Intake Mouthpiece For 2004.5-2010 Chevrolet And GMC LLY / LBZ / LMM Duramax With HSP 4.5IN Intake - 003-HSP

HSP Max Flow Turbo Inlet Mouthpiece for 2004.5–2010 Chevrolet / GMC Duramax LLY / LBZ / LMM (for HSP 4.5” Intake)

The factory turbo inlet mouthpiece not only lacks style ” it also restricts airflow and limits your engine’s power potential. The HSP Max Flow Turbo Inlet Mouthpiece fixes these issues with a cast-aluminum, CNC-machined design built for performance, durability, and improved sealing. Featuring an integrated O-ring flange to keep unfiltered air out and a 1/2 IN NPT port in the PCV location, this mouthpiece is engineered to pair perfectly with an HSP 4.5— Cold Air Intake for maximum flow.

Included Components

• 1x 4.5IN Max Flow Mouthpiece
• 1x 1/2IN NPT Plug
• 1x 4.5IN Straight Boot (for HSP Intake)
• 2x 4.5IN Stainless Steel T-Bolt Clamps

Vehicle Fitment

• LLY: 2004.5–2005 (VIN Code 2) with HSP LBZ-style Cold Air Intake
• LBZ: 2006–2007 (VIN Code 2 or D) with HSP Cold Air Intake
• LMM: 2007.5–2010 (VIN Code 6) with HSP Cold Air Intake

Special Fitment Notes

• This mouthpiece will not fit with factory intakes.
• For use with aftermarket 4— intakes, see part number 003-4-HSP.
• This product requires a PCV reroute if one is not already installed (recommended: 003-1-HSP).
• 2004.5–2005 models require a 2006–2007 style intake, and the MAF sensor must be rescaled through tuning.

How to Identify VIN Code

The engine code is determined by the 8th character of the VIN. The model year is identified by the 10th character.

Overview

• Increased power and improved airflow
• O-ring sealed flange to prevent unfiltered air leaks
• Compatible with a wide range of aftermarket performance intakes
• Enhanced turbo sound and responsiveness
• Cast-aluminum design, CNC-machined for precision
• Multiple color and custom powder coat options available

Our Warranty

HSP NO BS LIMITED LIFETIME WARRANTY

At HSP, we believe in our products and stand firmly behind everything that leaves our facility. For years, we’ve gone above and beyond for customers ” even without an official written warranty. Our No BS Limited Lifetime Warranty puts that same commitment into writing, providing clarity, dependability, and unmatched support.

For more information about our Lifetime, No BS Warranty, click HERE.