ICT Billet 551503 - LBZ LLY LMM Duramax 2004.5-10 Mouth Piece Resonator Plug

Duramax Resonator Large Plug Required when removing bulky resonator "noise-reduction" box from the intake tube Compatible with;2004.5 to 2010 Duramax LLY LBZ LMM 6.6L ONLY Made in the USA from aerospace grade billet aluminum Includes: 1 "Mouth Piece" Resonator plug w/ Orings Satin Aluminum Finish for durability and corrosion resistance