• The site migration is complete! Hopefully everything transferred properly from the multiple decades old software we were using before. If you notice any issues please let me know, thanks! Also, I'm still working on things like chatbox, etc so hopefully those will be working in the next week or two.

Recent content by Overkill

  1. Overkill

    2004+ GTP throttle body upgrades?

    I made them, they didn't sell well, I think I have one left.
  2. Overkill

    Black Friday Deals on Tuning, Injectors and other parts

    It's meant to replace the turndown, on intercooled cars. Becoming common that the welds crack. No welds to crack on this adapter plate
  3. Overkill

    Black Friday Deals on Tuning, Injectors and other parts

    I've put up some Black Friday deals. Link: http://www.getoverkilled.ca/blackfriday2015.html Tuning is $100 plus core deposit! Custom tuning for your mods at no extra charges. Checkout prices included the refundable core deposit ($75 on Series 2, $100 on Series 3). 3800 Series 3 Throttle Body...
  4. Overkill

    Black Friday - LS4 and 3800 Parts and Tuning!

    Put up lots of Black Friday specials that'll run through the weekend! http://www.getoverkilled.ca/blackfriday2015.html LS4 Intake Manifold kits are on sale 75mm kit is $750, save $250! 90mm kit is closeout price of $1000, save $550! Only 2 available at time of writing. More info at...
  5. Overkill

    **Overkill LS4 Intake Manifold Upgrade**

    I'm very pleased to introduce the Shutter intake manifold upgrade for the LS4 platform, available from Overkill Motorsport. I am very pleased to be offering this for the LS4 Grand Prix GXP crowd, this is a first of its kind, a true bolt on intake manifold upgrade for the LS4 platform. The...
  6. Overkill

    Stock throttle bodies

    Looking for 04+ Series 3 throttle bodies and may also be interested in some 99+ Series 2, supercharged and non. Working on a project. What you got and what you want?
  7. Overkill

    04 vs 05+ throttle body difference?

    I never even noticed this before and can't recall whether I'd mixed and matched, but the part numbers for 04 Grand Prix and 05-08 Grand Prix throttle bodies are different. Anyone had issues putting one on the other or noticed what the difference is?
  8. Overkill

    Sale Damaged PCM Clearance - All sold

    Hey guys, not a glamorous sale however I have a couple of damaged computer modules I wanted to see if anyone was keen on at deep discount. These 04+ modules often get damaged, either in inventory carelessness, a dishonest seller on ebay/wrecking yards when I buy cores, or more typically I'll...
  9. Overkill

    Black Friday - Overkill LS4 intake with MAF upgrade

    I've posted a Black Friday discount, $150 ($50 off) on my LS4 intake kit with the MAF upgrade and $100 off an intake + tune combo. Intake details were posted about here: http://www.grandprixforums.net/threads/89809-Overkill-MAF-upgrade-6-wheel-horsepower-gain Both deals can be found here...
  10. Overkill

    Overkill Will Tuning God

    From the chatbox today when I logged onto the forums...
  11. Overkill

    The chat box thing

    Mine looks like this
  12. Overkill

    The chat box thing

    Didn't know where else to ask this, but I can't figure out how to join the chatter at the top of the forums there. I don't see anywhere to type in a message. I've tried it in both Explorer and Chrome. Can anyone take a screen shot or something, show me what I'm missing?
  13. Overkill

    Overkill MAF upgrade - 6 wheel horsepower gain

    I've recently started putting together intake kits for the W-Body platform and its different engines. On the LS4 ASI, I include a larger MAF sensor that's 1/2" larger than the factory unit, plugs into the factory connector and is very cost effective. Why the MAF upgrade? The LS4 uses the same...
  14. Overkill

    LS7 MAF on 3800

    Call this an exercise in teaching an old dog (read: the 3800, not me) new tricks. We've been using the "LQ4" "85mm MAF" that was originally introduced on 1999 GM vehicles with our Northstar upgrade kits (and LS1 upgrade kits before that, that's how old it is) and in particular those who are...
  15. Overkill

    Canuk Motorsports vs SSC springs

    A customer that I referred to SSC for their lowering springs was directed by SSC to Canuk Motorsports to buy their springs. Supposedly this is SSC's retail branch. Does anyone have Canuk Motorsports springs specifically and specifically for a 97-03 GP that they can post pictures of? And ever...
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