How Much Power Can Your Gain From an AEM Standalone?

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Stand alone ECUs like the AEM Infinity are made to support modifications way beyond stock. So, what happens if you add one to a stock S2000 motor?

The term standalone ECU is usually for race cars, because the stock ECU can not handle the task. We are talking about motor swaps, giant turbos, or steam engine conversions. Well, maybe not steam engines. The factory ECU works with all the factory sensors and vacuum systems. Most modern ECUs you can tune for mild modifications, like an intake and exhaust. The older and simpler ECUs would use piggy-back systems, like the APEXI Power FC, to trick the readings of the air/fuel ratio. So, if you had a stock S2000 with just a three inch cat-less exhaust, why would you install a AEM Infinity standalone?

AEM Infinity S2000

In this video, YouTuber TC9700Gaming decides to find out just what advantages can be gain from running an AEM on his S2000. He explains in the video that the AEM was from on a friend’s car with a 1JZ swap and that the friend no longer has a need for it. So, he installed it on his almost completely stock S2000. The only power modification is a three inch cat-less exhaust system from Origin Fabrication. Now in the video, he does not state if he has dyno’d the car before.

So, we have no idea of what his S2000 was making in stock form. We know Honda says the S2000 engine has 240 horsepower. So, if you factor a 15% drivetrain loss, the stock horsepower number should be around 204. Now he states that the car is setup to run on 93 octane and the less-restrictive exhaust should help with power. So, check out the video to find out just how much power his stock-ish S2000 made with the AEM Infinity. Let us know what you think in the comments.

Patrick Stevenson is an Internet Brands' contributor to 6SpeedOnline, Honda-Tech, Corvette Forums,, and MBworld. He is also a host on The Motor Affair Podcast.

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