Trying to decide Overkill or ZZP tuning

**camopaint0707** · 02-12-2013

I mean I want the car tuned once I get a bunch of mods done to it.

**jakeb157** · 02-15-2013

Is something up with the overkill website? I tried going to it but i kept getting a different site.

**h0wl0ngcanitbe** · 02-15-2013

Email works best. Go with will he's great. Haven't even ordered mine and I'm all about this guy. Very helpful

Willoverkill@gmail.com

**TexasTanker19kilo20** · 02-15-2013

I enjoy my Overkill PCM, it helps the stock engine and it's ready to handle the 3.4 setup, no need for retune, according to the website.

**Robby Avery** · 03-30-2013

Originally Posted by Fivefingerdeathpunch

Hey guy, why did you make 2 threads about the same topic?

http://www.grandprixforums.net/need-...ods-74241.html

Because if one gets no replies pretty sure the other will lol. I'm just looking to have a fun DD and be reliable with a few mods that's all. Ya'll's knowledge of enhancing the perf of the 3800 is far beyond me and I'm still learning so I'm trying to ask questions where they hopefully will be answered no matter weither they are the same thread or not.

**matt5112** · 03-30-2013

Had a canned tune, it just shifted later. Basically made more noise, didn't go any faster.

Not worth the effort, let alone the money.

**NegativeOne13** · 03-31-2013

Had Overkill tune on basic mods. Enjoyed it for a while. Finally had a custom in car tune, kept Will's trans settings, but other tune editing. Now I am completely satisfied with my tune.

Moral: In car tune is always > than canned.

**coolone** · 03-31-2013

Headers are not a waste as anything allowing the car to breathe better is ok. Probably get a few mph improvement over the stock exhaust manifold... Throttle body spacer is a waste as mentioned. And you'd be better to save your $ and get your own tuner. While saving read up on how to tune and be ready. Overall on an NA engine you are only going to go so far, so those investments will not get you a great return on your investment, whether a canned tune or doing it yourself. Bottom line is you need a plan on what you want the engine/car to do. A tune will not magically transform the engine into something it's not! But it can make it perform more efficiently in HP or Economy up to its limits.

Overkill is a good guy but does the tunes as a side business not his primary, so patience is required. If going the canned tune route I would recommend his product over all others!

Good Luck!

**matt5112** · 03-31-2013

Had a couple in car tunes, they took over tuning it myself.

Tune never affected the car nearly as much as hard parts or physically broken parts.

Down with canned tunes.

**Uno99** · 04-02-2015

Stay away from ZZP tunes mine was horribly rich.

**buschegt** · 04-03-2015

I just got my pcm from zzp and I'm pretty happy with it. I can tell a difference in a few things. Whats the big difference between overkill and zzp's tune?