The Hummer H3 is a tough little ride, but there is always room for improvement in the automotive universe. One of the most notable areas that the Hummer H3 falls short is gas mileage. You can increase those low MPG numbers while also boosting your power and torque with our custom aftermarket Hummer H3 ignition systems.
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Here at AutoAnything, we only stock the best custom designed Hummer H3 ignition systems. These bad boys are made only for this model, so you know you get the perfect fit and performance every time. To stock anything else would be like taking your sister out to dinner and never calling her again; not cool, man