Description
HSP Turbo Inlet Max Flow Mouthpiece for 2004.5–2010 Chevrolet / GMC Duramax LLY / LBZ / LMM (for 4” Aftermarket Intakes)
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
Special Fitment Notes
This mouthpiece will not fit with factory air intake systems.
For HSP Intakes, please see 003-HSP .
How to Identify VIN Code
The engine code is determined by the 8th character of the VIN number.
The model year is identified by the 10th character .
Our Warranty
HSP NO BS LIMITED LIFETIME WARRANTY
For more information about our Lifetime, No BS Warranty, click HERE .