2015-2021 Subaru STI Drivetrain Parts & Upgrades
Shop 2015-2021 subaru sti drivetrain parts and performance upgrades at JDMuscle. We carry the top brands with guaranteed fitment for your 2015-2021 Subaru STI.
2015-2021 Subaru STI Drivetrain
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![Subaru OEM [02 - 26 WRX/STI, LGT, FXT] STI Group N Pitch Stop Mount | D1040FE000 - JDMusclePitch Stop MountssubD1040FE000](//jdmuscleusa.com/cdn/shop/files/subaru-oem-02-26-wrxsti-lgt-fxt-sti-group-n-pitch-stop-mount-d1040fe000-6680094.png?v=1770324736&width=220)
Subaru OEM STI Group N Pitch Stop Mount | D1040FE000
Fits: 02-26 WRX/STI, LGT, FXT
Regular price $74.95Sale price $74.95 Regular priceUnit price per$74.95 -
![ACT [04-21 STI / 07-09 LGT] Spec B Xtreme Duty Performance Street Disc Clutch Kit | SB10-XTSS](//jdmuscleusa.com/cdn/shop/products/act-xtreme-duty-street-clutch-kit-subaru-sti-2004-2020-sb10-xtss-clutches-act-actsb10-xtss.jpg?v=1614511378&width=220)
Up to $205 off
In StockACT Spec B Xtreme Duty Performance Street Disc Clutch Kit
Fits: 04-21 STI, 07-09 LGT
Only 18 leftRegular price $875.00Sale price $875.00 Regular priceUnit price per$1,080.00 -
![ACT [04-21 STI] Streetlite Flywheel | 600235](//jdmuscleusa.com/cdn/shop/products/act-streetlite-flywheel-subaru-sti-2004-2020-legacy-gt-spec-b-2007-2009-600235-flywheels-act-act600235.jpg?v=1614511376&width=220)
![ACT [04-21 STI] Streetlite Flywheel | 600235](//jdmuscleusa.com/cdn/shop/products/act-streetlite-flywheel-subaru-sti-2004-2020-legacy-gt-spec-b-2007-2009-600235-flywheels-act-act600235-2.jpg?v=1614673154&width=220)
Up to $112 off
In StockACT Streetlite Flywheel | 600235
Fits: 04-21 STI
Regular price $476.00Sale price $476.00 Regular priceUnit price per$588.00 -
![Perrin Performance [05 - 25 Subaru WRX, STI, Forester, Outback, XT, Legacy GT, Impreza] Transmission Crossmember Bushings - JDMuscleTransmission and Differential BushingsperPSP-DRV-141](//jdmuscleusa.com/cdn/shop/files/perrin-performance-05-25-subaru-wrx-sti-forester-outback-xt-legacy-gt-impreza-transmission-crossmember-bushings-1763746.jpg?v=1770321265&width=220)
![Perrin Performance [05 - 25 Subaru WRX, STI, Forester, Outback, XT, Legacy GT, Impreza] Transmission Crossmember Bushings - JDMuscleTransmission and Differential BushingsperPSP-DRV-141](//jdmuscleusa.com/cdn/shop/files/perrin-performance-05-25-subaru-wrx-sti-forester-outback-xt-legacy-gt-impreza-transmission-crossmember-bushings-6825249.jpg?v=1770321265&width=220)
Up to $8.70 off
In StockPerrin Transmission Crossmember Bushings - Manual Transmission
Fits: 08-26 WRX, 08-21 STI, 05-14 Legacy/Outback, 08-13 Forester, 05-23 Impreza, 14-23 Crosstrek
Regular price $49.30Sale price $49.30 Regular priceUnit price per$58.00 -
![Driveshaft Shop [15-21 STI] 1-Piece Carbon Fiber Driveshaft - JDMuscleDrive Shafts and Drivelinesdss610265](//jdmuscleusa.com/cdn/shop/products/driveshaft-shop-15-21-sti-1-piece-carbon-fiber-driveshaft-2795977.jpg?v=1783899498&width=220)
![Driveshaft Shop [15-21 STI] 1-Piece Carbon Fiber Driveshaft - JDMuscleDrive Shafts and Drivelinesdss610265](//jdmuscleusa.com/cdn/shop/products/driveshaft-shop-15-21-sti-1-piece-carbon-fiber-driveshaft-1318230.jpg?v=1783899499&width=220)
Driveshaft Shop 1-Piece Carbon Fiber Driveshaft
Fits: 15-21 STI
Regular price $1,299.98Sale price $1,299.98 Regular priceUnit price per$1,299.98 -
![Competition Clutch [04-21 STI] Stage 3 Segmented Ceramic Clutch Kit | 15030-2600](//jdmuscleusa.com/cdn/shop/products/competition-clutch-stage-3-segmented-ceramic-clutch-kit-subaru-sti-2004-2019-15030-2600-clutches-competition-clutch-comp15030-2600.jpg?v=1614512014&width=220)
In StockCompetition Clutch Stage 3 Segmented Ceramic Clutch Kit | 15030-2600
Fits: 04-21 STI
Only 1 leftRegular price $720.00Sale price $720.00 Regular priceUnit price per$720.00 -
![Perrin Performance [12 - 26 Subaru WRX, STI, Forester XT, Impreza, Crosstrek] Differential Lockdown System - JDMuscleSubframe BushingsperPSP-DRV-536](//jdmuscleusa.com/cdn/shop/files/perrin-performance-12-26-subaru-wrx-sti-forester-xt-impreza-crosstrek-differential-lockdown-system-9650813.jpg?v=1770321310&width=220)
![Perrin Performance [12 - 26 Subaru WRX, STI, Forester XT, Impreza, Crosstrek] Differential Lockdown System - JDMuscleSubframe BushingsperPSP-DRV-536](//jdmuscleusa.com/cdn/shop/files/perrin-performance-12-26-subaru-wrx-sti-forester-xt-impreza-crosstrek-differential-lockdown-system-2749203.jpg?v=1770321310&width=220)
Up to $7.05 off
In StockPerrin Differential Lockdown System
Fits: 15-26 WRX, 15-21 STI, 08-25 Impreza, 13-26 Crosstrek, 05-26 Outback, 05-25 Legacy, 98-25 Forester, 19-26 Ascent
Only 2 leftRegular price $39.95Sale price $39.95 Regular priceUnit price per$47.00 -
In StockCobb Tuning Stage 1 Drivetrain Package
Fits: 04-21 STI 6MT
Regular price $285.00Sale price $285.00 Regular priceUnit price per$285.00 -
![COBB [04 - 21 STI] Double Adjustable Short Throw Shifter | 215315 - JDMuscleShort Throw Shifterscobb215315](//jdmuscleusa.com/cdn/shop/products/cobb-04-21-sti-double-adjustable-short-throw-shifter-215315-7355225.jpg?v=1770336435&width=220)
![COBB [04 - 21 STI] Double Adjustable Short Throw Shifter | 215315 - JDMuscleShort Throw Shifterscobb215315](//jdmuscleusa.com/cdn/shop/products/cobb-04-21-sti-double-adjustable-short-throw-shifter-215315-9541297.jpg?v=1770336434&width=220)
In StockCobb Tuning Double Adjustable Short Throw Shifter
Fits: 04-21 STI
Regular price $217.00Sale price $217.00 Regular priceUnit price per$217.00 -
![Torque Solution [04-21 STI] Short Shifter & Bushings Combo - JDMuscleShifter and Bushing CombostqsTS-SS-001C](//jdmuscleusa.com/cdn/shop/products/torque-solution-04-21-sti-short-shifter-bushings-combo-2916406.jpg?v=1783899676&width=220)
Up to $27.32 off
In StockTorque Solution Short Shifter & Bushings Combo
Fits: 04-21 STI
Only 8 leftRegular price $206.00Sale price $206.00 Regular priceUnit price per$233.32 -
In StockNRG Stealth Style Adjustable Shift Knob - Universal | SK-500BK-1
Only 4 leftRegular price $47.66Sale price $47.66 Regular priceUnit price per$47.66 -
Kartboy 04-21 STI Shifter Bushing Combo | KB-003-6COMB
Regular price $63.00Sale price $63.00 Regular priceUnit price per$0.00 -
![Torque Solution [02 - 25 WRX, 04 - 21 STI, 13 - 21 BRZ/FR - S/86] Flywheel Lock Tool | TS - TL - 756 - JDMuscleFlywheelstqsTS-TL-756](//jdmuscleusa.com/cdn/shop/files/torque-solution-02-25-wrx-04-21-sti-13-21-brzfr-s86-flywheel-lock-tool-ts-tl-756-5598697.jpg?v=1770327438&width=220)
In StockTorque Solution Flywheel Lock Tool
Fits: 02-25 WRX, 04-21 STI, 13-21 BRZ/FR-S/86
Regular price $29.00Sale price $29.00 Regular priceUnit price per$29.00 -
![Cusco [02 - 26 WRX/STI, LGT, FXT] Pitch Stop Mount - Blue | 6A1 - 911 - PS - JDMusclePitch Stop Mounts6A1-911-PS](//jdmuscleusa.com/cdn/shop/products/cusco-02-26-wrxsti-lgt-fxt-pitch-stop-mount-blue-6a1-911-ps-5166257.jpg?v=1770328335&width=220)
Up to $17 off
In StockCusco Pitch Stop Mount - Blue
Fits: 02-26 WRX/STI, LGT, FXT
Only 5 leftRegular price $153.00Sale price $153.00 Regular priceUnit price per$170.00 -
Up to $19.79 off
In StockSnow Performance Boost Juice | Case of 4 Gallons - Universal
Regular price $49.47Sale price $49.47 Regular priceUnit price per$69.26 -
![South Bend Clutch [04 - 21 STI] Stage 2 Daily Clutch Kit w/ Flywheel | FJK1000FW - HD - O - JDMuscleClutchessbcFJK1000FW-HD-O](//jdmuscleusa.com/cdn/shop/products/south-bend-clutch-04-21-sti-stage-2-daily-clutch-kit-w-flywheel-fjk1000fw-hd-o-9322919.jpg?v=1770329001&width=220)
Up to $34.48 off
In StockSouth Bend Clutch Stage 2 Daily Clutch Kit w/ Flywheel
Fits: 04-21 STI
Only 3 leftRegular price $1,114.75Sale price $1,114.75 Regular priceUnit price per$1,149.23
![Subaru OEM [02 - 26 WRX/STI, LGT, FXT] STI Group N Pitch Stop Mount | D1040FE000 - JDMusclePitch Stop MountssubD1040FE000](http://jdmuscleusa.com/cdn/shop/files/subaru-oem-02-26-wrxsti-lgt-fxt-sti-group-n-pitch-stop-mount-d1040fe000-6680094.png?v=1770324736&width=220)
![ACT [04-21 STI / 07-09 LGT] Spec B Xtreme Duty Performance Street Disc Clutch Kit | SB10-XTSS](http://jdmuscleusa.com/cdn/shop/products/act-xtreme-duty-street-clutch-kit-subaru-sti-2004-2020-sb10-xtss-clutches-act-actsb10-xtss.jpg?v=1614511378&width=220)
![ACT [04-21 STI] Streetlite Flywheel | 600235](http://jdmuscleusa.com/cdn/shop/products/act-streetlite-flywheel-subaru-sti-2004-2020-legacy-gt-spec-b-2007-2009-600235-flywheels-act-act600235.jpg?v=1614511376&width=220)
![ACT [04-21 STI] Streetlite Flywheel | 600235](http://jdmuscleusa.com/cdn/shop/products/act-streetlite-flywheel-subaru-sti-2004-2020-legacy-gt-spec-b-2007-2009-600235-flywheels-act-act600235-2.jpg?v=1614673154&width=220)
![Perrin Performance [05 - 25 Subaru WRX, STI, Forester, Outback, XT, Legacy GT, Impreza] Transmission Crossmember Bushings - JDMuscleTransmission and Differential BushingsperPSP-DRV-141](http://jdmuscleusa.com/cdn/shop/files/perrin-performance-05-25-subaru-wrx-sti-forester-outback-xt-legacy-gt-impreza-transmission-crossmember-bushings-1763746.jpg?v=1770321265&width=220)
![Perrin Performance [05 - 25 Subaru WRX, STI, Forester, Outback, XT, Legacy GT, Impreza] Transmission Crossmember Bushings - JDMuscleTransmission and Differential BushingsperPSP-DRV-141](http://jdmuscleusa.com/cdn/shop/files/perrin-performance-05-25-subaru-wrx-sti-forester-outback-xt-legacy-gt-impreza-transmission-crossmember-bushings-6825249.jpg?v=1770321265&width=220)
![Driveshaft Shop [15-21 STI] 1-Piece Carbon Fiber Driveshaft - JDMuscleDrive Shafts and Drivelinesdss610265](http://jdmuscleusa.com/cdn/shop/products/driveshaft-shop-15-21-sti-1-piece-carbon-fiber-driveshaft-2795977.jpg?v=1783899498&width=220)
![Driveshaft Shop [15-21 STI] 1-Piece Carbon Fiber Driveshaft - JDMuscleDrive Shafts and Drivelinesdss610265](http://jdmuscleusa.com/cdn/shop/products/driveshaft-shop-15-21-sti-1-piece-carbon-fiber-driveshaft-1318230.jpg?v=1783899499&width=220)
![Competition Clutch [04-21 STI] Stage 3 Segmented Ceramic Clutch Kit | 15030-2600](http://jdmuscleusa.com/cdn/shop/products/competition-clutch-stage-3-segmented-ceramic-clutch-kit-subaru-sti-2004-2019-15030-2600-clutches-competition-clutch-comp15030-2600.jpg?v=1614512014&width=220)
![Perrin Performance [12 - 26 Subaru WRX, STI, Forester XT, Impreza, Crosstrek] Differential Lockdown System - JDMuscleSubframe BushingsperPSP-DRV-536](http://jdmuscleusa.com/cdn/shop/files/perrin-performance-12-26-subaru-wrx-sti-forester-xt-impreza-crosstrek-differential-lockdown-system-9650813.jpg?v=1770321310&width=220)
![Perrin Performance [12 - 26 Subaru WRX, STI, Forester XT, Impreza, Crosstrek] Differential Lockdown System - JDMuscleSubframe BushingsperPSP-DRV-536](http://jdmuscleusa.com/cdn/shop/files/perrin-performance-12-26-subaru-wrx-sti-forester-xt-impreza-crosstrek-differential-lockdown-system-2749203.jpg?v=1770321310&width=220)
![COBB [04 - 21 STI] Double Adjustable Short Throw Shifter | 215315 - JDMuscleShort Throw Shifterscobb215315](http://jdmuscleusa.com/cdn/shop/products/cobb-04-21-sti-double-adjustable-short-throw-shifter-215315-7355225.jpg?v=1770336435&width=220)
![COBB [04 - 21 STI] Double Adjustable Short Throw Shifter | 215315 - JDMuscleShort Throw Shifterscobb215315](http://jdmuscleusa.com/cdn/shop/products/cobb-04-21-sti-double-adjustable-short-throw-shifter-215315-9541297.jpg?v=1770336434&width=220)
![Torque Solution [04-21 STI] Short Shifter & Bushings Combo - JDMuscleShifter and Bushing CombostqsTS-SS-001C](http://jdmuscleusa.com/cdn/shop/products/torque-solution-04-21-sti-short-shifter-bushings-combo-2916406.jpg?v=1783899676&width=220)
![Torque Solution [02 - 25 WRX, 04 - 21 STI, 13 - 21 BRZ/FR - S/86] Flywheel Lock Tool | TS - TL - 756 - JDMuscleFlywheelstqsTS-TL-756](http://jdmuscleusa.com/cdn/shop/files/torque-solution-02-25-wrx-04-21-sti-13-21-brzfr-s86-flywheel-lock-tool-ts-tl-756-5598697.jpg?v=1770327438&width=220)
![Cusco [02 - 26 WRX/STI, LGT, FXT] Pitch Stop Mount - Blue | 6A1 - 911 - PS - JDMusclePitch Stop Mounts6A1-911-PS](http://jdmuscleusa.com/cdn/shop/products/cusco-02-26-wrxsti-lgt-fxt-pitch-stop-mount-blue-6a1-911-ps-5166257.jpg?v=1770328335&width=220)
![South Bend Clutch [04 - 21 STI] Stage 2 Daily Clutch Kit w/ Flywheel | FJK1000FW - HD - O - JDMuscleClutchessbcFJK1000FW-HD-O](http://jdmuscleusa.com/cdn/shop/products/south-bend-clutch-04-21-sti-stage-2-daily-clutch-kit-w-flywheel-fjk1000fw-hd-o-9322919.jpg?v=1770329001&width=220)