I recently bought a 04 lly. When askin about performance I was told the first thing to do is address the mouthpiece problem. I removed the mouthpiece to clearance the lip(temporary fix till I can afford a killerbee) but theres nothing there to remove, the lip is smooth, not like im hearing the LLY mouthpieces are. I guess it could have already been replaced by the previous owner with the LB7 mouthpiece, how do I determine what I have? I still have bad turbo lag so I wanna do whatever it takes to get rid of that. Pulls like hell once it gets goin but takeoff sucks.
just buy the LBZ (not LB7 totally different turbo) mouthpiece, a 4 inch rubber coupler boot and 2 hose clamps and your set. the LLY mouthpiece is small diameter, not rough on the inside.
__________________ Pickup: 03 GMC 2500HD EXT Cab Long Box
Tuner: EFI Live, DSP5 switch
Exhaust: Diamond Eye 5 inch system, BD manifold, PnP manifolds
Airtake: S&B intake
Fueling: Airdog 150
Turbo: DDP 64mm
Transmission: Stock, soon to change
Suspension: Firestone Air Bags, add a leaf, tie rod sleeves, shock extenders, 255/85R16 BFG KM2 Screamin Diesel Performance
Gotcha, thanks. Im gonna make that happen soon. This turbo lag is killing me. What the hell are people talkin about clearancing the LLY mouthpiece, theres nothing there to grind off.
__________________ 04 LLY CCSB LBZ mouthpiece-resonator plug
33x12.50 Toyo MT's on 18'' Eagles
Gooseneck Hitch-Spray in bed liner
Straight pipe with 4''tip
AFE stage 2-EGR blocker
PPE Xcelerator-N-Fab step bars
Tool box-bed rails
AMSOIL!!!
Stacks coming soon!!!!!
Gotcha, thanks. Im gonna make that happen soon. This turbo lag is killing me. What the hell are people talkin about clearancing the LLY mouthpiece, theres nothing there to grind off.
port ou the material on the inside to a larger diameter. turbo lag, try driving a LB7 stock if your complaining, haha. the LBZ mouthpiece will help aswell as a tuner and exhaust.
o you have a tuner, jsut a crappy one, bullydog stuff really sucks for dmaxes
__________________ Pickup: 03 GMC 2500HD EXT Cab Long Box
Tuner: EFI Live, DSP5 switch
Exhaust: Diamond Eye 5 inch system, BD manifold, PnP manifolds
Airtake: S&B intake
Fueling: Airdog 150
Turbo: DDP 64mm
Transmission: Stock, soon to change
Suspension: Firestone Air Bags, add a leaf, tie rod sleeves, shock extenders, 255/85R16 BFG KM2 Screamin Diesel Performance
I was scared to try to port it out any. The walls are already thin, u could'nt take out enough to do any good. Seems like tryin to port it would just make it worse by killin the smooth flow
__________________ 04 LLY CCSB LBZ mouthpiece-resonator plug
33x12.50 Toyo MT's on 18'' Eagles
Gooseneck Hitch-Spray in bed liner
Straight pipe with 4''tip
AFE stage 2-EGR blocker
PPE Xcelerator-N-Fab step bars
Tool box-bed rails
AMSOIL!!!
Stacks coming soon!!!!!
Use-ta Haves 2006-6.0 3500 WT DRW ExCab Flatbed, 2005-LLY 3500 LS DRW Crew Cab, 2002-LB7 3500 LS DRW Crew Cab I Live my life in such a way that when my feet hit the floor in the morning...Satan shudders & says "Oh shit, he's awake!"
__________________ 05 2500HD CC SB-Sold for money to give to TAMU.
Performance:
PPE hot +2 level 3, MBRP 5", EGR Blocked, Resonator Plugged
To Come With a little save up time-Suncoast IV, Airdog or Mitusa Lift Pump, EFI Live, and a few others.
Audio:
Alpine iDA-X100 HU
Alpine Type S components all four doors, powered by Alpine 500 watts RMS
2-Alpine Type S 10" subs, powered by Alpine 600 watts RMS
iPod with too many songs, And Sirius Radio http://performancetruckproducts.com/
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2007 LBZ 3500 LT3 DRW Crew Cab, Sulastics, Putnam XDR 15K, B&W 30K-Turnover GN, Ride-Rite Air... 
2008 LMM 3500WT DRW Crew Cab, 8 'Flat/GN, Workforce Alum Toolbox, Ride-Rite Air, Sulastics
I Live my life in such a way that when my feet hit the floor in the morning...Satan shudders & says "Oh shit, he's awake!" 
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