Cobb Tuning Mazda Knob - White Knob w/ Race Red - 271350-W-RD 10 Micron Supersedes P/N 11141

Supersedes P/N 11141

24%-52% reduction in throw on the Si

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

Purchase the Heater Core Delete Kit if you want to remove the thermostat housing heater tube as well

0 Turbo FA20F (Aftermarket Turbo utilizing barbed aftermarket inlet)

Cobb Tuning Mazda Knob - White Knob w/ Race Red - 271350-W-RD 10 Micron Supersedes P/N 11141EMISSIONS 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