Supertech Dual Valve Spring Kit for 2020+ Supra GR Syvecs Seibon carbon fiber MB1 style

Seibon carbon fiber MB1 style front lip for 2015-2017 Subaru WRX and STi front bumpers

STM-DSM-INTK-SD-325-WB

Please contact us for availability

Fits all 4G63 Evolution I-IX and 1G/2G DSM

5 +30 (5x114

Supertech Dual Valve Spring Kit for 2020+ Supra GR Syvecs Seibon carbon fiber MB1 styleSupertech dual valve spring kits for 2020+ Supra GR. Includes 24 dual springs, 24 titanium retainers. Available in two options with 75lb or 85lb seat pressure. Please do all your research and consult your engine builder if necessary! Vehicle Fitment: 2020 2021 Toyota Supra GR MKV MK5 B58B30 Engine Install Notes: Uses OEM Seats Purchase Includes: (24) Dual Valve Springs (24) Titanium Retainers Part Number: Pressure Seat: SPRK B58B 75lbs @ 37mm 155lbs @