"Bought a chip for my 1995 BMW 3 series. Installed it according to the included diagram. Immediately, I did notice improved power and torque. Wasn't so much looking for fuel economy, and given that I was harder on the throttle I don't see how I could get that fuel economy (my fault not GForce's!).

I am happy. Referred many friends in my car club to their product."

"Bought a chip for my 2006 Hummer H2 back in January. Have had it on my car over 2000 miles and have noticed an increase in fuel economy and definitely better power. Only issue I ran into was the time the company took to get me my wiring diagram. I wish it was included but when properly installed these work like a charm. I will recommend the product. It is amazing how a little tuning of your iat sensor improves your performance so significantly."

"I recently ordered a Gforce chip, and decided to return it rather than use it. Gforce refunded my money as they said they would. They were more than willing to work with me. I cannot give a review on the product as i did not use it, but as far as the return and refund process, they were very helpful!"

"I ordered a G-Force performance chip for my car on November 25 and it arrived in a quick three days. I never actually installed the chip so I requested a refund. After some preliminary discussions about a 25% restocking fee, G-Force made good on their webpage promise of a 100% refund, leaving me a satisfied non--customer."

"Excellent product. I got it after about 4 days, which was phenomenal and installed it with my uncle the next day. I immediately noticed better power and my car doesn't sputter when I start anymore. I would recommend this product to all my friends, infact my uncle ordered one for his Z71 Chevy.

I did see a lot of negative information about them but I decided to try it myself and I am glad I did. Very happy customer!"

"This is a TOTAL SCAM!!!! Be sure and read there terms and conditions. And read there Disclaimed, you won't believe it. The front page claims up to 60hp increase and 4-7 MPG increase. but then here's THEIR DISCLAIMER....Our claims of gains of fuel economy and power and performance found throughout this website is based on direct customer feedback and not actual tests.... But yet they have a page with 3 supposed Dyno tests with results. They advertise a 100 % money back gaurantee but they don't tell you that you have only 14 day. So in 14 days you have to install it and drive atleast 100 miles before you can expect to see any results and make a decission to return it but I've read all over the web that then they charge a 25% restock fee. And they are VERY rude!! The guy kept saying to me "obviously we can't guarantee it forever". I said "I never said you should or could guarantee it forever I just want you stand behind your product for a few days". NOPE, but my Discover Card stood behind their guarantee not to let me be scammed.
If they have scammed you first try to call your credit card company and let them know you would like to file a fraud claim and write down the websites that will back up your claim (there are many). My Discover Card called me back in a couple of days and said they where giving me a 100% refund and that they would deal with Gforce them selves. Evidently they applied a little pressure because several weeks later I received an e-mail from Gforce saying they were giving me a refund of $69.00 for the chip and $5.95 for shipping, that's FUNNY because Discover card had already done that 2 days after my complaint. These guys know they are selling junk. On their website they have positive testimonials but it's funny, you can't leave a testimonial or review. Plus almost anywhere you find a positive review it's very short (makes ya wonder who wrote it), but most of the negative ones provide lots of information. P.S. They changed their disclaimer since I first wrote this in August 2012"

"Excellent product. Quick shipment, and the product works. I got 3 MPG better (although they did advertise 4-7, I was still happy).

I have recommended them to all my family members.

Thanks for the good work!"

"
I have a GS430 2004 and made the mistake of hooking up this GFORCE performance chip I got for christmas.

I asked them to send me a wire digram to make sure I connected the wire clips to the right two wires. They did so I did what they instructed. The moment I started the car I could tell it was running rough... I got the check engine light and VSC lights on also so I turned off the car and disconnected the chip.

I took the car into the shop and it ended up being the mother board after all. The G-Force chip fried it and it cost $1000 to get repaired... I did everything as they told me and my mechanic verified that I did tap into the two wires they tell you to... so just a warning this could happen to you also.

Another heads up to anyone considering that piece of junk GFORCE CHIP. They promise a full 100% refund if your not satisfied, but what you don't know is that buried in the small fine print in the long terms and conditions ( if you were to bother reading them) They let you know that they charge a 25% restocking fee! So you pay 69.00 + shipping = $74.95. Then you have to pay to ship it back ($5.95 ) so your $80+ into this mess. This is after the damage to my car so add $990.00 to fix it. So now I'm at $1,070.90 and all they refunded me was $51.75 when I was expecting the $69.00 back. They just keep bending you over and filling their pockets at every turn. No wonder they offer 100% money back guarantee. They make $17.25 off every return as well.

WARNING, WARNING, WARNING --- DO NOT DO BUSINESS WITH THESE PEOPLE!!!!!!!!"

"OMG......After installing the first chip and having my engine light go on, I went through a check list of how to fix the problem with tech support only to have the engine light keep coming on. I returned that chip only to find out it had a broken wire ( so much for quality control). A second chip was sent out and lasteed a week before the engine light came back on. Can't get arefund on my money. This company SUCKS!"

"The company claims their product increases fuel economy and HP. It does not. Actually I got better fuel economy without it. They have poor documentation as to your specific vehicle's installation, yet they claim it takes two weeks to make each chip specifically for your vehicle. They do offer a return policy but it takes forever for them to honor it and you will be out shipping both ways. My gut feeling is that these "performance chips" no matter what company sells them, are a rip off and I would not suggest wasting your money on one."