1. This site uses cookies. By continuing to use this site, you are agreeing to our use of cookies. Learn More.

Performance

Engine mods, Chips, Filters, etc.

Sponsored By: Black Bear Performance
Page 1 of 44
Sort By:
Title Start Date
Replies Views
Last Message ↓
  1.    
  2. JennaBear

    Lower thermostats, really needed?

    JennaBear, Feb 26, 2013 ... 2 3
    Replies:
    26
    Views:
    12,979
    BlackBearPerf
    Mar 30, 2020
  3. wheatswake

    the real story on spark plug wires

    wheatswake, May 8, 2010 ... 3 4 5
    Replies:
    43
    Views:
    55,611
    avalonandl
    Jul 9, 2019
  4.    
  5. JDopirak

    Went to the track

    JDopirak, Sep 11, 2019 ... 4 5 6
    Replies:
    55
    Views:
    3,949
    ls1frc
    Jul 10, 2020 at 8:48 AM
  6. JDopirak

    Walk around after cam and heads

    JDopirak, Apr 12, 2020 ... 4 5 6
    Replies:
    50
    Views:
    2,524
    Dantheman1540
    Jul 9, 2020 at 1:59 PM
  7. 91RS

    Headers on a 6.2L with Stock Muffler/Cat-Back?

    91RS, Mar 27, 2019 ... 9 10 11
    Replies:
    108
    Views:
    11,178
    the_tool_man
    Jul 9, 2020 at 11:53 AM
  8. ls1frc

    Does 2015+ catback fit this generation?

    ls1frc, Jul 4, 2020
    Replies:
    8
    Views:
    187
    avalonandl
    Jul 9, 2020 at 7:57 AM
  9. 09_4WD_YUKON

    Performance tune

    09_4WD_YUKON, May 14, 2020
    Replies:
    1
    Views:
    409
    08z71bgm
    Jul 4, 2020
  10. LanceD

    E85

    LanceD, Feb 5, 2018 ... 17 18 19
    Replies:
    186
    Views:
    20,058
    gooffeyguy
    Jul 2, 2020
  11. swathdiver

    Useless Information

    swathdiver, Oct 10, 2017 ... 86 87 88
    Replies:
    878
    Views:
    46,398
    swathdiver
    Jul 1, 2020
  12. SixTwoTahoe

    Camshaft Bearings

    SixTwoTahoe, Jun 17, 2020 ... 2
    Replies:
    16
    Views:
    534
    91RS
    Jun 24, 2020
  13. cmatt

    Swapping intake manifold & throttle body on a 5.3

    cmatt, Jun 20, 2020
    Replies:
    4
    Views:
    266
    iamdub
    Jun 21, 2020
  14. itsbo1313

    Long term owners of BlackBear Autocal tunes.

    itsbo1313, Jan 18, 2020 ... 3 4 5
    Replies:
    40
    Views:
    4,080
    hardluck13
    Jun 21, 2020
  15. JimHanus

    2013 5.3L with Hypertech Tuner For Towing?

    JimHanus, Jun 18, 2020
    Replies:
    1
    Views:
    164
    avalonandl
    Jun 19, 2020
  16. Jolly Roger

    archoil...........Anyone try it?

    Jolly Roger, Jun 17, 2020
    Replies:
    3
    Views:
    147
    79jasper
    Jun 17, 2020
  17. pt1965

    AFM DISABLE not available?

    pt1965, Jun 8, 2020
    Replies:
    7
    Views:
    617
    ftwflh
    Jun 15, 2020
  18. drjay2012

    Airaid Cold Air Intake

    drjay2012, Jun 9, 2020
    Replies:
    7
    Views:
    462
    Peter Tremonti
    Jun 10, 2020
  19. BPopilek

    2008 Yukon with LQ4 Engine Mod Questions

    BPopilek, Feb 22, 2017
    Replies:
    1
    Views:
    670
    SuperDave
    Jun 8, 2020
  20. Lsnoob13

    Upgraded L92 injectors

    Lsnoob13, May 4, 2020 ... 2
    Replies:
    12
    Views:
    846
    Chert_Detective
    May 27, 2020
  21. avalonandl

    Hypertech Tuner for 6.2

    avalonandl, Apr 26, 2020
    Replies:
    6
    Views:
    439
    Drok
    May 26, 2020
  22. Lsnoob13

    Dumb exhaust cutout question

    Lsnoob13, May 7, 2020 ... 2 3
    Replies:
    28
    Views:
    1,205
    Lsnoob13
    May 16, 2020
  23. Klewis

    High Temps 2011 Yukon XL Denali

    Klewis, Apr 15, 2020 ... 3 4 5
    Replies:
    43
    Views:
    2,123
    mikeyss
    May 15, 2020
  24. 2010yukondenali

    2010 Yukon Denali 6.2 exhaust

    2010yukondenali, Mar 2, 2020 ... 2
    Replies:
    19
    Views:
    1,758
    Foggy
    May 9, 2020
  25. tjmrider

    Suggestions

    tjmrider, May 2, 2020
    Replies:
    4
    Views:
    399
    Doubeleive
    May 4, 2020
  26. 07hoeCHEVY

    #8 spark plug

    07hoeCHEVY, May 16, 2019 ... 4 5 6
    Replies:
    51
    Views:
    5,087
    Warriorpluto
    May 3, 2020
  27. SUMTOY2

    Headlights

    SUMTOY2, Apr 28, 2020
    Replies:
    4
    Views:
    620
    PNW VietVet
    Apr 30, 2020
  28. JDopirak

    Your dyno numbers?

    JDopirak, Jul 29, 2019 ... 2 3
    Replies:
    24
    Views:
    3,070
    JDopirak
    Apr 28, 2020
  29. Foggy

    Where to install Additional Gauges ??

    Foggy, Apr 17, 2020
    Replies:
    6
    Views:
    423
    gooffeyguy
    Apr 27, 2020
  30. 14SWTahoe

    Upgrade OEM Transmission Cooler

    14SWTahoe, May 14, 2015 ... 9 10 11
    Replies:
    104
    Views:
    38,059
    08grey
    Apr 26, 2020
  31. GreyStone

    About that funny shaped intake tube - there's a reason - Performance!

    GreyStone, Mar 11, 2020 ... 5 6 7
    Replies:
    65
    Views:
    6,195
    mackmcmillan
    Apr 5, 2020
  32. HACK BLOCK

    Are my plugs still good?

    HACK BLOCK, Mar 5, 2020 ... 2
    Replies:
    14
    Views:
    1,144
    Foggy
    Mar 30, 2020
  33. PoorMansEscalade

    Question for header guys

    PoorMansEscalade, Dec 4, 2019 ... 2 3
    Replies:
    20
    Views:
    2,135
    Foggy
    Mar 30, 2020
  34. Smashleytulsa

    Corvette LS swapped tahoe

    Smashleytulsa, Feb 20, 2020
    Replies:
    7
    Views:
    984
    swathdiver
    Mar 27, 2020
Showing threads 1 to 30 of 1,297

Thread Display Options

Loading...
Page 1 of 44