20Performance Chips Make Your Car Faster
Many of these chips don’t do anything other than turn on a light to make you think that it's doing something.
There are many websites that will sell a performance chip for your car claiming that it will increase your power output by some arbitrary amount. Now, some tuners can reprogram or replace a car’s ECU, allowing the motor to run in a slightly different way to produce more power. There
are even some cars that have ECUs that can be modified via a plug-in tuner which allows owners to modify their car on the fly. However, such devices are not the same as the performance chips that you’ll find on eBay.
On top of that, some of these chips claim to be universal, which is impossible, given the diversity of car ECUs. If you’re going to get your ECU tuned, get it properly dyno-tuned by an expert.