Drivetrain & Transmission
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Perrin Performance
Enhance your driving experience by installing the PERRIN Clutch Delay Valve Delete. This simple yet powerful upgrade removes the OEM clutch delay valve to improve the feel of your clutch engagement du
Enhance your driving experience by installing the PERRIN Clutch Delay Valve Delete. This simple yet powerful upgrade removes the OEM clutch delay valve to improve the feel of yo...
SKU: PSP-BRK-300RD
Ford Racing
8.8" Ring Gear And Pinion Installation Kit Ring And Pinion Installation Kit
SKU: M-4210-B2

Perrin Performance
PERRIN 15-25 Subaru WRX / 14-18 Forester / 10-17 Outback 5spd Brass Shifter Bushing
SKU: PSP-INR-016
Yukon Gear & Axle
3 Qt. 80W90 Conventional Gear Oil with Friction Modifier Additive
SKU: OK 3-QRT-CONV-A
Kartboy
Kartboy 04-21 Subaru WRX STi 6-Speed/07-09 Subaru Legacy GT Spec.B Front Shifter Bushing
SKU: KB-003-STI
Perrin Performance
The PERRIN Shifter Detent Kit is an inexpensive upgrade that adds a crisp and solid feel to gear changes in your manual transmission WRX or STI.
SKU: PSP-INR-042RD
Kartboy
Kartboy 15-25 Subaru WRX 6-Speed/16-20 Subaru Crosstrek/19-20 Subaru Forester Short Shifter Combo
SKU: KB-20-WRX
Ford Racing
Mustang IRS Super 8.8-Inch Ring And Pinion Set-3.55 Ratio Ring Gear And Pinion Set
SKU: M-4209-88355A
Ford Racing
Mustang IRS Super 8.8-Inch Ring And Pinion Set-3.73 Ratio Ring Gear And Pinion Set
SKU: M-4209-88373A
Perrin Performance
PERRIN 15-21 Subaru WRX/STI & 13-26 BRZ/FRS/GR86 Stainless Steel Clutch Line
SKU: PSP-BRK-305
Ford Racing
8.8" Traction-Lok Limited Slip Differential Trac-Lok Differential
SKU: M-4204-F318C
Perrin Performance
The PERRIN Shifter Detent Kit is an inexpensive upgrade that adds a crisp and solid feel to gear changes in your manual transmission WRX or STI.
SKU: PSP-INR-041RD

Perrin Performance
PERRIN 15-25 Subaru WRX / 14-17 FXT (w/Short Shifter) Shifter Stop
SKU: PSP-INR-018
Perrin Performance
Keep your driveshaft firmly in place and maintain proper alignment with the PERRIN Driveshaft Lockdown.
SKU: PSP-DRV-201
Perrin Performance
Enhance your driving experience by installing the PERRIN Clutch Delay Valve Delete. This simple yet powerful upgrade removes the OEM clutch delay valve to improve the feel of your clutch engagement du
Enhance your driving experience by installing the PERRIN Clutch Delay Valve Delete. This simple yet powerful upgrade removes the OEM clutch delay valve to improve the feel of yo...
SKU: PSP-BRK-300BK
Perrin Performance
PERRIN 15-25 Subaru WRX (w/Short Throw) Shifter Stop Upgrade Kit (Req. Shifter Stop Kit)
SKU: PSP-INR-026
Kartboy
Kartboy 97-01 Subaru Impreza/97-99 Subaru Legacy/02-07 Subaru WRX (w/SPT Shifter) RS Shifter
SKU: KB-001-RS
Perrin Performance
PERRIN 18-25 Subaru WRX (w/o Short Throw Shifter) Super Shifter Stop Kit
SKU: PSP-INR-023
Perrin Performance
PERRIN 15-17 Subaru WRX (w/PERRIN Short Throw Shifter) Super Shifter Stop Kit
SKU: PSP-INR-021

Perrin Performance
PERRIN 18-25 Subaru WRX / 18-19 Forester (w/o Short Shifter) Shifter Stop
SKU: PSP-INR-019
Competition Clutch
Stage 2: Clutch Kit: 2006-14 WRX, 05-09 Legacy GT: 2.5L: 5 Speed: w/flywheel
SKU: 15026-2100
Kartboy
Kartboy 08-14 Subaru WRX/06-09 Subaru Legacy GT/06-08 Subaru Forester XT Short Shifter
SKU: KB-001-LEG
Whiteline
Differential Mount - Bushing Kit Differential - mount bushing
SKU: KDT954
Ford Racing
2015 -2025 Mustang Super 8.8-Inch Traction-Lok Differential Trac-Lok Differential
SKU: M-4204-M
Whiteline
Gearbox Linkage Selector - Bushing Kit Gearbox - linkage selector bushing
SKU: KDT957
Whiteline
Gearbox To Crossmember - Bushing Kit Gearbox - crossmember pad bushing
SKU: KDT901