DVMotorsport DVM-EP93 Performance Chip

This is a review and analysis of the DVMotorsport DVM Performance chip module. If you are looking for a REAL DVMotorsport performance chip review, then this is for you! What is this product and what does it do? Let’s take a look:



Company Profile

The manufacturer is a company called “DVMotorsport”, and their website is: http://dvmotorsport.com/.  The product is also available on ebay.com from seller ‘dvmotor11’.

This DVMotorsport chip we are reviewing is also referred to as an ‘IAT’ chip.  Volo performance, a company that makes a legitimate module we previously reviewed, has a page claiming this DVMotorsports chip is just another IAT chip scam:





The cost at the time of this review on ebay for the DVMotorsports Performance Chip was $21.37 USD. This price is extremely low to be a genuine performance chip. So far, even before examining the module itself, it is not looking good, as we have suspicions it is another scam chip at an extremely low cost.



Product Appearance


DVMotorsport IAT Performance Chip Module DVM-EP93


The module comes in the black plastic case shown above, and includes the install kit, which consists of two wire splices and cable ties:


DVMotorsport DVM-EP93 Performance Chip Module Install Kit


While the design looks impressive, we already have suspicions of what actually may be inside the box. There are only two wires coming out of the chip, which is very common with many dangerous IAT resistor scam chips.

From the seller ‘dvmotor11’ ebay listing:

“The Perfomance Module is the answer to today’s high fuel prices and our quest to squeeze that hidden power and fuel economy out of your engine. With our products you gain a horsepower gain of up to +35 HP, while gaining up to +5 MPG in fuel mileage due to increased engine efficiency! The way our products work is by sending a continuous signal through a factory engine data sensor that your Factory Engine Control Module (ECM) monitors. This modified and continuous signal triggers your factory ECM to reprogram itself for a more optimum fuel mixture and timing curve, allowing the full benefits of an expensive power programmer but while retaining the complete safety of your Factory ECM.”

The numerous spelling errors are another clue to who is behind this product, and it is not promising. Also, the claims of +5 MPG in fuel economy sounds familiar. This is exactly what was claimed with the Innovative Performance chip scam we previously reviewed. Lets take a look inside to see what we are really dealing with.


Internal Analysis

We purchased one of these modules from ebay and examined the inside of the module:

DVMotorsport Ohmmeter Resistance Test


We connected an ohmmeter across the two wires and immediately observed a resistance value of approx. 4.3K ohms. This is not a real surprise, as the price and connection method of the ‘chip’ (two wires) lends itself to a resistor hack:


DVMotorsport DVM-EP93 Performance Chip Resistance Analysis Test


After unscrewing the two screws and removing the rear panel from the black box, we observed this high-quality part:


DVMotorsport Resistor Hack


They really shouldn’t have – that resistor must have cost 13 cents or more at least! As we can see from the color code of the resistor, our ohmmeter reading was correct – this ‘chip’ is nothing but two wires connected to a 4.7K ohm resistor in a fancy black case:


4.7K Ohm Resistor Color Code Value Chart


The resistor is supposed to be within 5% tolerance, so even the resistor is not a good quality one – it is outside of the specs the manufacturer specified. To be within specs, the resistor should read between 4.5K and 4.9K ohms. This resistor hack is not only cheap, but can be dangerous to some engines, causing ECU and / or engine damage.




We connected the DVMotorsport performance chip module as instructed to the IAT sensor in our test vehicle. The guide said to connect the two wires to the factory harness using the two included quick connect splice connectors. Upon reconnecting it and starting the engine, we immediately noticed rough idling. No improved power, just more issues! We immediately turned the vehicle off and removed the ‘chip’. After starting the vehicle again, the idle immediately returned to normal. In our case, the engine operation returned to normal after we removed this ‘resistor in a box’, but this is not always the case from others’ experiences posted on the web.

We followed the instructions to give it the benefit of the doubt, and…… nothing. No power increase, no mileage increase. We did, however, have a nice looking black box in the engine bay!




It is clear from our analysis that the DVMotorsport Performance Chip module is nothing but a resistor and cannot hold real vehicle ECU maps. The circuit, like the numerous other IAT chip scams, connects across a sensor on the engine, telling the engine to alter the air and fuel ratio. While it may improve power on some engines, on others, like ours, it causes rough idling, and on others it can cause ECU damage. We would not recommend it as IAT scams have been widely known to cause random vehicle issues, including ECU and engine damage.




From our research and review, it is our opinion that the DVMotorsport performance chip module is just another cheap, dangerous IAT resistor scam. It may also cause ECU damage, so we suggest avoiding it at all costs. It is actually not a chip at all – just a resistor! You definitely want to pass on this one!



Company Communication
Power Gains
Safe for Vehicle
Total Rating



2 Replies to “DVMotorsport DVM-EP93 Performance Chip”

  1. This is pure bunk – cant believe it is still being sold. my neighbor showed me one a few weeks ago, i was suspicious and now know why!!!

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