Shop with Blessed Performance for the HSP Diesel Max Flow Intake Mouthpiece for your 2004.5-2010 GM 6.6L LLY/LBZ/LMM Duramax diesel. The factory turbo inlet mouthpiece not only lacks style — it also restricts airflow and limits your engine’s power potential. The HSP Max Flow Mouthpiece solves both issues using a cast-aluminum, CNC-machined design engineered for durability, airflow, and improved sealing. Featuring an integrated O-ring flange to prevent unfiltered air leaks and a ½” NPT port in the PCV location, this mouthpiece ensures that your aftermarket intake system is not held back by a restrictive OEM component. The 4.5” inlet guarantees maximum flow before reducing to your 4” aftermarket intake.
Included Components:
- 1x 4.5” Max Flow Mouthpiece
- 1x ½” NPT Plug
- 1x 4.5” to 4” Reducer Boot (for 4” aftermarket intakes)
- 1x 4.5” Stainless Steel T-Bolt Clamp
- 1x 4” Stainless Steel T-Bolt Clamp
- 1x O-Ring Seal
Vehicle Fitment:
- LLY: 2004.5–2005 (VIN Code 2) with 4” LBZ-style aftermarket intake
- LBZ: 2006–2007 (VIN Code 2 or D) with 4” aftermarket intake
- LMM: 2007.5–2010 (VIN Code 6) with 4” aftermarket intake
Note:
This mouthpiece WILL NOT fit with factory air intake systems.
For HSP Intakes, please see 003-HSP.