COBB Knob Weighted for 6-Speed WRX/STi Injector Dynamics the GrimmSpeed Crank Pulley quantitatively

the GrimmSpeed Crank Pulley quantitatively improved throttle response

These are not regular stock and may be coming from Japan

no re-welding

Every PERRIN Intercooler Core features a powder coat finish to protect your intercooler from the elements

The app has three main pages: Voltage Test

COBB Knob Weighted for 6-Speed WRX/STi Injector Dynamics the GrimmSpeed Crank Pulley quantitativelyThe weighted COBB Knob weighs in at 240 grams with a satin Delrin material comfortable in both hot and cold climates. Available in black or white with interchangeable black or red bases. Vehicle Fitment: 2015 2025 Subaru WRX 2004 2021 Subaru STi 6 Speed Manual Transmission Part Number: Finish: 213360 BK Black 213360 W White Features: M12 x 1. 25 Thread Satin Delrin Knob Removable Lower Trim Ring Race Red and Black Stainless Steel Weighted Insert 240