Thread: Breakthrough in 2006+ PCM tuning

Hello everyone. I've been hard at work lately on 2006-2008 3800 Grand Prix computer tuning

As most who own an 06+ 3800 Grand Prix know, you have non reprogrammable PCMs. At least, you didn't.

I'm very excited and pleased to post that I'll be offering a proper tuning solution for 06-08 GPs using your original PCM modules. What this means is:
-no more searching for 2005 PCM modules
-no more non-returnable computer cores
-no more extra expense just to make your vehicle tuneable.

You'll be able to purchase an Overkill PCM tune, receive a 06+ PCM module that's been reprogrammed, and send back your old module for the core charge refund.

Also, 2007-2008 owners, you'll be pleased to know that I've been able to correct the operation of the fuel gauge on your vehicles with an aftermarket tune, so when you purchase an Overkill PCM for your 07-08 you'll receive a PCM that won't cause your fuel gauge to read backwards.

All of this announcement is exclusive to Overkill Motorsports. I've worked very hard lately for 06+ owners to provide better tuning solutions.

If you've purchased a 2005 based Overkill PCM for your 2006+ vehicle in past, stay tuned, I'm going to see what I can work out to allow you to return your 2006 computers for at least a partial core charge refund regardless of when you purchased. Please email me willoverkill@gmail.com if you'd be interested in this.

My website will be updated shortly with the changes! :: Overkill Motorsports ::

Any questions please post or email.

Will doin' work!

Graet news man!

You're not gonna share your secrets with everyone else?

I'll trade you for the Heinz ketchup recipe

What if I give you a list of the ingredients?

Tomatoes.

And some water.

GTFO.

Originally Posted by Overkill

I'll trade you for the Heinz ketchup recipe

Top Secret Recipes | Heinz Ketchup Recipe

Done, now fulfill your half of the deal.

Whatever lol

<----stoked for tune and having a properly working gas gauge when it's done

will cracked the 06+ vault!! wooo!

not sure if i should get one now just to have the car behave better or wait till i get my turbo stuff... will are you good with turbo tunes?

either way, im excited!

Will, you're making me wish I had a GP again just so I could get it tuned. Congrats!

Originally Posted by ZR1Vette09

Will, you're making me wish I had a GP again just so I could get it tuned. Congrats!

Maybe if you didn't buy what you did then?

They are cheap...breh.

dang, i'm running an '05 pcm. dang gas gauge....wish you could share the secret, i'm having bcm issues like crazy too. wish i could just get my '07 pcm self tuned!!! congrats on the hack!

I watched him tune a turbo Gp this afternoon

Will's the man with a scanner!

that. is. awesome. i'm jealous

and by watch i mean i saw him get in the car, leave, while some of us stood around talking, then he got out and tune was done.. lol

haha, cool enough

Oh MY JESUS YES!!! Just in time my car only has 60psi in the number 3 cylinder so some upgrades r in order and now I can get a tune w/o all the other bs sweetness. Will soon as I get some cash ill be ordering 2 pcm's one for the 06 and one for the 97 THANK YOU FOR THE HARD WORK.

Originally Posted by Mad Monkey

and by watch i mean i saw him get in the car, leave, while some of us stood around talking, then he got out and tune was done.. lol

Yeah but it was like SO much faster when it came back than when it left. That was actually a fun challenge, to tune a heads/cam/T67 Turbo car with an 82% AFC and 80# injectors and dial in the LT trims, have actual AFR match commanded AFR and all safely set up to allow the owner to dial in the tune himself from there and all within 1 hour.

vailskier3, what BCM issues are you having? Are you sure they're related to your 05 PCM?