Cobb Tuning Mazda Knob - White Knob w/ Race Red - 271350-W-RD 10 Micron AEM’s X-Series OBDII gauge (PN

AEM’s X-Series OBDII gauge (PN 30-0311) puts multiple channels of data at your fingertips by reading the CAN bus stream of your vehicle’s OBD port and transmitting those channels to the gauge display

SB014 pressure plate features an exclusive diaphragm design to increase clamp load

DN3-XTSS kit features an Xtreme pressure plate for the most demanding driver

Some of our competitors require that you frequently perform a free-air calibration procedure to calibrate their O2 sensors

Cobb Tuning Mazda Knob - White Knob w/ Race Red - 271350-W-RD 10 Micron AEM’s X-Series OBDII gauge (PNEMISSIONS This part is not an emissions related part and therefore can be used on Emission Controlled Vehicles. DESCRIPTION The COBB Knob is designed to keep those extended shifting sessions exhilarating. The billet aluminum base is anodized in your choice of red or black to help set the mood and is internally threaded to provide a tight fit onto the shifter shaft that won't come loose in the most frenzied of gear changes. The satin black delrin knob