Cobb Tuning 07-10+ Mazdaspeed3 / 06-07 Mazdaspeed6 AccessPORT AP-MAZ-002 Installs via the vehicle's diagnostic port - no tools/disassembly/wiring required Reversible Process: the ECU can be returned to stock at any time Scantool Capability: Read and clear check engine lights (CELs) Measure 0-60, 1/4 mile times, estimate fuel economy, & estimate torque and horsepower