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Thread: New Tire Size question

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  1. #1
    Join Date
    Mar 2003
    Location
    San Antonio, TX
    Posts
    11,038
    our highest gain is 33hp and 29tq, it's somewhere on the forum, not sure where, there's a graph of a 07 avalanche 5.3L on the NP.com site for reference.

    thanks,

  2. #2
    Join Date
    Dec 2007
    Location
    Union, MO
    Posts
    510
    2 more questions for ya. Do I need to worry about damage to engine or tranny since I have 94k on it? Where is the computer located?
    2010 Silverado ECSB LS 4x4. Only mods so far are a K&N drop in filter and a Rough Country 2" front level kit

  3. #3
    Join Date
    Mar 2003
    Location
    San Antonio, TX
    Posts
    11,038
    No damage will occur, we've tune many trucks with higher mileage and we have a lot of customers with 100K miles on the drivetrain.
    It's on the driver's side, next to the power steering pump, mounted on the fender, has a black plastic cover on it.
    two 7mm bolts hold the connectors on, disconnect the battery before installing the pcm.

    thanks,

  4. #4
    Join Date
    May 2008
    Location
    verona, virgina
    Posts
    626
    a tune from Nelson Performance would be a great investment! i love mine i have nothing but good things to say about it. go for it man.
    03 yukon xl:intake, longtubes ory,performabuilt lvl2,circle D 278,tune, tint, lt1 fans
    92 z28: lb9 air foil vette servo magnaflow catback adjustable pan hard rod Lcas lcarbs
    86 trans am: lm7 hot cam th350 3500 stall

  5. #5
    Join Date
    Dec 2007
    Location
    Union, MO
    Posts
    510
    Sounds good!
    2010 Silverado ECSB LS 4x4. Only mods so far are a K&N drop in filter and a Rough Country 2" front level kit

  6. #6
    Join Date
    Aug 2010
    Location
    Snohomish, Washington, USA
    Posts
    9
    ya do the tune made my yukon a way different truck/suv. it feels like more than 20-30hp ur gaining cuz of all the other stuff they do and btw if ur speedo is reading slower than ur gps then in theory ur keepin miles off your truck... not a whole lot tho. sounds like ur not even 5% off so if u put 100 miles on ur odometer u really went 105 lol.


    Hanratty - On/Off - Road - Enterprizies

    2003 gmc yukon slt awd auto ride
    k&n drop in w/ opened air box
    nelson 92octane tune
    magnaflow
    vette servo
    and some visuals

  7. #7
    Join Date
    Dec 2007
    Location
    Union, MO
    Posts
    510
    Well, gonna have to wait a little linger on the tune. Having issues with my HVAC. Look at my new thread under T&D and tell me what y'all think.
    2010 Silverado ECSB LS 4x4. Only mods so far are a K&N drop in filter and a Rough Country 2" front level kit

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