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The LBZ mouthpiece is less restrictive than the LLY mouthpiece.
This product does not include billet plugs!
Posted by Troy on 3rd Apr 2013
Made quite a difference in turbo spool up. Exhaust sound seemed to change for the better as well. Thanks Danville for fast shipping and having it in stock as it seems to be tough to get. Great upgrade for LLY's.
Posted by Dallas A. on 6th Nov 2012
Definitely the #1 modification any LLY owner should do, the stock mouthpiece is way too restrictive and I've already noticed lower temps and quicker spool up. Also thanks Danville for great Customer Service!
Posted by Cory B. on 25th Sep 2012
Ordered it on a saturday and got it on a tuesday. Great people to work with.
Posted by JP on 29th May 2012
Just installed and had a chance to run my 05 LLY truck unloaded. Boost transition is much smoother, and power is noticeably increased... No joke!!! EGT's are down about 100 degrees pulling up steeps grades. I did swap to a LBZ cold air intake, as the LLY intake does not fit LBZ mouth piece. A must do for anyone with an LLY!