Billetworkz Weighted Matte Black Tall Teardrop Shift Knob WRX 6-Speed Japanese Engraving Subaru WRX 15-26 / STI 04-21 | BW-KNB-WRX6-JPWRX-MBLK-TT Vehicle Model_Impreza No steel back is required

No steel back is required which can cause high RPM lockout and/or synchro damage

Designed for high-RPM and aggressive camshaft applications

Engineered for daily driving and performance use

The fully atmospheric Vee-Port features a variable exhaust port system providing superior venting of pressure

Note: Designed for use with OE shocks

Billetworkz Weighted Matte Black Tall Teardrop Shift Knob WRX 6-Speed Japanese Engraving Subaru WRX 15-26 / STI 04-21 | BW-KNB-WRX6-JPWRX-MBLK-TT Vehicle Model_Impreza No steel back is requiredFitment Information: 2004 2021 Subaru STI 2015 2026 Subaru WRX Please note: This item is for 6 speed manual transmission models only. It does not fit models with CVT Automatic transmission. Features: Add style and color to your interior with the Billetworkz Weighted 6 Speed Shift Knob. This shift knob is designed to replace your oem knob for smooth shifting while keeping full reverse lockout functionality. Each knob is CNC machined, properly cleaned,