Mazda has moved to address that ail with the SEMA 2011 Turbo2 Concept. Boasting a direct-injection 2.3-liter turbocharged four-cylinder engine, the small hatch is crammed with 263 horsepower and ...

Tuning company BBR has developed a series of upgrades for the Mazda 2.3-litre DSI turbo engine, which powers the MPS versions of the Mazda 3 and 6. The tuning upgrades are available in three phases.