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#help 2500hd allison allison 1000 bad injectors banks biodiesel brakes chevrolet silverado 2500 chevy cognito coolant coolant leak cp3 cp4 crank but no start def deleted denali diesel diesel fuel dpf dpf delete drivetrain dtc error codes dually duramax duramax 2500hd duramax 6.6 ecm edge efi efi live egr egr delete electrical electrical problems engine engine smokes exhaust for sale fuel fuel additives discussion fuel filter fuel mileage fuel system problems gmc head gasket help injector injectors intake knock knocking l5p lb7 lbz leak leaking led pods lift limp mode lly lly duramax lly durmax lml lml duramax lmm lmm duramax no start noise oil oil pressure p0087 p0700 powertrain ppe programmer reduced power rims smoke steering suspension tcm tires tow towing trans transfer case transmision transmission transmission problems tune tuner tuning turbo wheels white smoke will not start wiring
  1. 11-16 LML Performance Parts Discussion
    Hey everyone, New member to the forum but have been creeping since I bought my 2015 GMC Denali 2500HD back in October of 2014. I finally pulled the trigger on Improving my trucks performance after 138K miles. I purchased ecm & tcm soft tunes, passenger up-pipe, MBRP downpipe, 5 inch straight...
    10mm cp3 pump downpipe lift pump 165 lml duramax
  2. 04.5-05 LLY Performance Parts Discussion
    Hey all, i'm replacing my factory exhaust off my 2004.5 LLY Duramax. I've decided to go with the MBRP Pro series downpipe-back exhaust and a stainless steel downpipe from PPE. My question to anyone who has done this, is it necessary to buy the PPE downpipe support bracket? I've seen some guys...
    2004.5 lly 4in mbrp exhaust downpipe downpipe support bracket mbrp pro series
  3. Introductions
    My name is Cory. I own Technics Window Tinting/Auto Shield in Fort Worth Texas. I just bought my 1st Diesel for towing a 34 ft. camper, Bumper pull. I have a 2013 2500HD LTZ. I am currently removing the EGR, CAT and DPF. Adding a 4in with muffler and a EFI Live Tow tune. I have been towing with...
    downpipe lml duramax up pipe
  4. Performance Upgrades
    Just purchased this exhaust and it appears to only be front pipe back, i have an 03. Can I do 4" from the turbo back or is it necisarry? Thanks in advance :drink
    downpipe exhaust frontpipe turbo back
  5. General Discussion
    annnnnnd edited.
    diamond eye downpipe insynerator pipe turbo
  6. 01-04.5 LB7 Performance Parts Discussion
    looking into gettin a down pipe. j/wif its worth it? and how hard is it to put on?
    downpipe exhaust
  7. 01-04.5 LB7 Performance Parts Discussion
    hey guys we were installing my diamond eye downpipe tonight and we have got it on..but we can not get it to fully slide all the way onto the turbo so we can clamp it back down. I need the truck for this Saturday for a trip to Florida so any ideas would really help.
    diamond eye diesel downpipe duramax exhaust exhaust installation turbo
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