Mazda Engine

Racing Beat's Jim Mederer Gives Us A Free Education On Rotary Shopping And Tuning.

Will switching to a colder thermostat increase power? Find out in this month's Fact Or Fiction section!

Read about the 2007 Mazda Speed 6 and how performance upgrades like an AEM cold air intake, can increase power.

Pumping It Up With The A'pexi AVC-R

It really sucks because we were about to drop the hammer on our long-termMazdaspeed Protegé when we had to say goodbye a few months early.Plus we lost a free ride.

We've been tempted to change the name of our Project Mazdaspeed Protege to "Project Perplexing." That's because it's always nearly impossible to know what'll happen when the wrenches start turning. Seemingly simple procedures often take gargantuan efforts, and

Expectation can be a dangerous thing, especially with tuning. We admit we had high expectations for Project Mazdaspeed Protege, as we had it serviced at Mazda's Tech Center. The service included the usual checks, a new windshield and a reflashing of the ECU. A