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Vendor:Driveshaft ShopDSS Subaru 2005-2007 STi (GD) Sedan 750HP Level 5 Front Axle - Single RA8523X5 - 510223
Regular price $572.23Sale price $572.23 Regular priceUnit price per -
Up to $77.98 OFFVendor:ExedyExedy 2004-2014 Subaru Impreza WRX STI H4 Lightweight Flywheel - FF501A
Only 6 leftRegular price $441.83Sale price $441.83 Regular priceUnit price per$519.81 -
Vendor:Driveshaft ShopDSS Subaru 2004-2007 WRX / 2004 (ONLY) STi (GD) Sedan 750HP Level 5 Front Axle - Single RA8521X5 - 510218
Only 11 leftRegular price $556.48Sale price $556.48 Regular priceUnit price per -
Vendor:GoodridgeGoodridge 08-18 Subaru WRX / 07-12 Subaru Legacy GT (5 & 6 Speed Trans) Clutch Line - 24222-CLU
Regular price $37.27Sale price $37.27 Regular priceUnit price per -
Up to $33.90 OFFVendor:Go Fast BitsGFB 04-07 STI Short Shifter Kit - 4002
Only 3 leftRegular price $305.10Sale price $305.10 Regular priceUnit price per$339.00 -
Vendor:KartboyKartboy Silver Knuckleball 5 Speed Shift Knob
Only 1 leftRegular price $35.99Sale price $35.99 Regular priceUnit price per -
Up to $154 OFFVendor:ACTACT Heavy Duty Race Sprung 6 Pad Clutch Kit For 2013-20 Subaru BRZ
Only 3 leftRegular price $654.00Sale price $654.00 Regular priceUnit price per$808.00 -
Vendor:Competition ClutchCompetition Clutch 2013-2014 Scion FR-S/Subaru BRZ Stage 2 - Steelback Brass Plus Clutch Kit * NO FW * - 15035-2100
Only 6 leftRegular price $445.00Sale price $445.00 Regular priceUnit price per -
Up to $120 OFFVendor:ACTACT Heavy Duty Clutch Pressure Plate for 2006+ Subaru WRX, 05-12 LGT, 06-08 FXT
Only 6 leftRegular price $514.00Sale price $514.00 Regular priceUnit price per$634.00 -
Vendor:SubaruSubaru Rear Differential Drive Pinion Spacer (T3.48MM) for 02-19 WRX, 04-07 STI
Only 1 leftRegular price $29.55Sale price $29.55 Regular priceUnit price per -
Vendor:Perrin PerformancePERRIN Shifter Stop For 2015-17 Subaru WRX with Aftermarket Shifter
Only 1 leftRegular price $38.25Sale price $38.25 Regular priceUnit price per -
Up to $36 OFFVendor:ACTACT Performance Street Sprung Clutch Disc For 2013-20 Subaru BRZ, 13-16 FR-S, 17-20 86
Only 4 leftRegular price $153.00Sale price $153.00 Regular priceUnit price per$189.00 -
Vendor:SubaruSubaru Rear Differential Drive Pinion Spacer (T3.12MM) for 02-19 WRX, 04-07 STI
Regular price $30.13Sale price $30.13 Regular priceUnit price per -
Up to $49 OFFVendor:ACTACT Performance Street Sprung Clutch Disc For 2004-21 Subaru WRX STI, 07-09 LGT
Only 13 leftRegular price $209.00Sale price $209.00 Regular priceUnit price per$258.00 -
Vendor:Competition ClutchCompetition Clutch 15lb Steel Flywheel for 2004-2021 Subaru STI - 2-721-ST
Only 14 leftRegular price $395.00Sale price $395.00 Regular priceUnit price per -
Up to $529.88 OFFVendor:ExedyExedy 2004-2014 Subaru Impreza WRX STI H4 Hyper Triple Cerametallic Clutch Rigid Disc Pull Type - FM023SB
Only 3 leftRegular price $3,002.15Sale price $3,002.15 Regular priceUnit price per$3,532.03 -
Vendor:ACTACT Subaru Impreza Release Bearing for 2006-18 WRX
Only 4 leftRegular price $74.99Sale price $74.99 Regular priceUnit price per -
Up to $24.32 OFFVendor:South Bend ClutchSouth Bend / DXD Racing Clutch 13+ Subaru BRZ 2.0L Stg 2 Daily Clutch Kit - FJK1005-HD-O
Only 2 leftRegular price $786.26Sale price $786.26 Regular priceUnit price per$810.58 -
Vendor:SubaruSubaru Rear Differential Drive Pinion Spacer (T3.63MM) for 02-19 WRX, 04-07 STI
Regular price $27.67Sale price $27.67 Regular priceUnit price per -
Vendor:SubaruSubaru Drive Pinion Spacer (T2.33MM)
Only 1 leftRegular price $13.67Sale price $13.67 Regular priceUnit price per -
Vendor:Driveshaft ShopDSS Subaru 2008-2014 WRX STi 1-Piece Aluminum Driveshaft - Single SUSH9 - 610165
Only 3 leftRegular price $908.71Sale price $908.71 Regular priceUnit price per -
Vendor:COBBCOBB Shifter Stop For 2015-26 Subaru WRX - 244600
Regular price $50.00Sale price $50.00 Regular priceUnit price per -
Up to $47.91 OFFVendor:XCLUTCHXClutch Chromoly Flywheel For Subaru 13-21 WRX STI Type RA 2.5L - XFSU003C
Only 6 leftRegular price $431.17Sale price $431.17 Regular priceUnit price per$479.08 -
Up to $10.50 OFFVendor:Perrin PerformancePERRIN Reverse Lockout Lever For 2013-20 Subaru BRZ - Black - PSP-INR-251BK
Only 5 leftRegular price $59.50Sale price $59.50 Regular priceUnit price per$70.00 -
Vendor:SubaruSubaru Differential Pinion Bearing Spacer (L57.2MM)
Only 1 leftRegular price $7.93Sale price $7.93 Regular priceUnit price per -
Vendor:SubaruSubaru Shifter Lock Wire for 02-21 WRX, 04-21 STI
Regular price $2.28Sale price $2.28 Regular priceUnit price per -
Up to $104.76 OFFVendor:ExedyExedy 2005-2005 Saab 9-2X Aero H4 Stage 1 Organic Clutch Subaru Forester 2004-2005 - 15802
Only 5 leftRegular price $593.53Sale price $593.53 Regular priceUnit price per$698.29 -
Vendor:KartboyKartboy Cable Shift Bearing Kit for 2015-21 Subaru WRX
Only 17 leftRegular price $16.20Sale price $16.20 Regular priceUnit price per -
Vendor:Competition ClutchCompetition Clutch 2002-2005 Subaru WRX Stage 4 - 6 Pad Ceramic Clutch Kit - 15029-1620
Only 3 leftRegular price $625.00Sale price $625.00 Regular priceUnit price per -
Vendor:SubaruSubaru Rear Differential Drive Pinion Spacer (T3.54MM) for 02-19 WRX, 04-07 STI
Only 1 leftRegular price $29.55Sale price $29.55 Regular priceUnit price per -
Vendor:KartboyKartboy Knuckle Ball 5 Speed Shift Subaru Knob - Black Aluminum
Only 8 leftRegular price $49.50Sale price $49.50 Regular priceUnit price per -
Up to $148 OFFVendor:CuscoCusco LSD RS-1.5 (2way) Rear GC8 GDB GRB GVB STI Impreza - LSD 182 L15
Only 6 leftRegular price $1,332.00Sale price $1,332.00 Regular priceUnit price per$1,480.00 -
Vendor:COBBCOBB Tuning 6-Speed Short Shifter For 2006-09 Subaru Legacy Spec B
Only 1 leftRegular price $215.00Sale price $215.00 Regular priceUnit price per -
Vendor:Driveshaft ShopDSS Subaru 2004-2007 STI 6-Speed (R180 Rear) 1-Piece Carbon Fiber Driveshaft SUSH2-C - 610098
Only 14 leftRegular price $1,299.98Sale price $1,299.98 Regular priceUnit price per -
Sold OutVendor:ARPARP Flywheel Bolt Kit for 2013-2020 Subaru BRZ / FR-S
Regular price $52.13Sale price $52.13 Regular priceUnit price per -
Up to $72.09 OFFVendor:MotulMOTUL 20L GEAR 300 LS Transmission Oil 75W90 - 103716
Only 18 leftRegular price $648.85Sale price $648.85 Regular priceUnit price per$720.94
Drivetrain
IAG PerfoFrom daily-driven Subarus to dedicated track builds, the drivetrain plays a critical role in performance and reliability. IAG Performance offers drivetrain upgrades and replacement parts for WRX, STI, BRZ, Legacy GT, and Forester XT applications, including driveshafts, clutches, transmission components, differential parts, mounts, bushings, and drivetrain fluids. Designed for EJ25, FA20, and FA24 platforms, these components help improve power transfer, durability, and driving feel. Shop premium brands including ACT, Competition Clutch, Albins, Pfitzner, Subaru, Whiteline, and more.