2015-2021 Subaru STI Engine Parts & Upgrades
Shop 2015-2021 subaru sti engine parts and performance upgrades at JDMuscle. We carry the top brands with guaranteed fitment for your 2015-2021 Subaru STI.
2015-2021 Subaru STI Engine
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![[04 - 17 STI] FactionFab Slotted Front Rotor V2 Dual Drilled 5x100/114 - JDMuscleBrake RotorsFFA1.10290.1](//jdmuscleusa.com/cdn/shop/files/04-17-sti-factionfab-slotted-front-rotor-v2-dual-drilled-5x100114-5707576.jpg?v=1772881220&width=220)
![[04 - 17 STI] FactionFab Slotted Front Rotor V2 Dual Drilled 5x100/114 - JDMuscleBrake RotorsFFA1.10290.1](//jdmuscleusa.com/cdn/shop/files/04-17-sti-factionfab-slotted-front-rotor-v2-dual-drilled-5x100114-2712122.jpg?v=1772881220&width=220)
In StockFactionFab Slotted Front Rotor V2 Dual Drilled 5x100/114
Fits: 04-17 STI
Regular price $155.00Sale price $155.00 Regular priceUnit price per$155.00 -
In StockFactionFab OE Line Subaru EJ Turbo to Downpipe Gasket
Regular price $12.00Sale price $12.00 Regular priceUnit price per$12.00 -
FactionFab Titanium Front Brake Shim Set
Fits: 18-21 STI Brembo
Regular price $75.00Sale price $75.00 Regular priceUnit price per$75.00 -
![Perrin [08-26 WRX, 08-21 STI, 13-26 BRZ, 22-26 GR86, 13-16 FR-S, 17-20 86, 08-25 Impreza, 13-20 Crosstrek, 08-18 Forester, 07-26 Outback, 07-25 Legacy] Long Exhaust Hanger Kit - 5 Pieces](//jdmuscleusa.com/cdn/shop/files/PSP-EXT-711_01.jpg?v=1789321345&width=220)
Up to $12.19 off
In StockPerrin Long Exhaust Hanger Kit - 5 Pieces
Fits: 08-26 WRX, 08-21 STI, 13-26 BRZ, 22-26 GR86, 13-16 FR-S, 17-20 86, 08-25 Impreza, 13-20 Crosstrek, 08-18 Forester, 07-26 Outback, 07-25 Legacy
Only 4 leftRegular price $69.06Sale price $69.06 Regular priceUnit price per$81.25 -
![OVERTAKE [04 - 21 STI, 06 - 07 WRX] Drive - By - Wire Throttle Body Gasket - Subaru EJ - JDMuscleGasketsA10479](//jdmuscleusa.com/cdn/shop/files/overtake-04-21-sti-06-07-wrx-drive-by-wire-throttle-body-gasket-subaru-ej-9296133.jpg?v=1770312010&width=220)
OVERTAKE Drive-By-Wire Throttle Body Gasket - Subaru EJ
Fits: 04-21 STI, 06-07 WRX
Regular price $9.00Sale price $9.00 Regular priceUnit price per -
In StockOVERTAKE Radiator Hose Kit - Subaru 2008-2014 WRX, 2008-2021 STI, 2009-2013 Forester XT
Regular price $109.00Sale price $109.00 Regular priceUnit price per$109.00 -
In StockOVERTAKE Maxx Flo Panel Filter
Fits: 08-21 WRX, 08-18 STI, 09-18 Forester, 13-17 Crosstrek, 05-17 Legacy, 05-17 Outback
Regular price $75.00Sale price $75.00 Regular priceUnit price per$75.00 -
![OVERTAKE [04-21 STI, 02-07 WRX, 04-08 FXT] Silicone Turbo Inlet Hose](//jdmuscleusa.com/cdn/shop/files/A10222BLU-overtake-turbo-inlet-04-21-sti-blue-1.jpg?v=1787236610&width=220)
![OVERTAKE [04-21 STI, 02-07 WRX, 04-08 FXT] Silicone Turbo Inlet Hose](//jdmuscleusa.com/cdn/shop/files/A10222BLU-overtake-turbo-inlet-04-21-sti-blue-2_76d95b7a-a482-4629-8e42-53727f1cb322.jpg?v=1787236610&width=220)
In StockOVERTAKE Silicone Turbo Inlet Hose
Fits: 04-21 STI, 02-07 WRX, 04-08 FXT
Regular price $280.00Sale price $280.00 Regular priceUnit price per$280.00 -
Fel-Pro Exhaust Pipe Flange Gasket | fel61106
Fits: 13+ BRZ, 15-21 WRX, 13-21 STI, Corolla
Regular price $20.00Sale price $20.00 Regular priceUnit price per$20.00 -
Up to $72.54 off
Torque Solution Stainless Axle Back Exhaust for Subaru WRX 2015-2025 and STI 2015-2021 | tqsTS-SU-883-S
Regular price $383.00Sale price $383.00 Regular priceUnit price per$455.54 -
![Cobb [Subaru STI] 6MT Stage 1+ Drivetrain Package - JDMuscleEngine Package Dealscobb215X01P-W-BK](//jdmuscleusa.com/cdn/shop/files/cobb-subaru-sti-6mt-stage-1-drivetrain-package-4281310.webp?v=1770318268&width=220)
![Cobb [Subaru STI] 6MT Stage 1+ Drivetrain Package - JDMuscleEngine Package Dealscobb215X01P-W-BK](//jdmuscleusa.com/cdn/shop/files/cobb-subaru-sti-6mt-stage-1-drivetrain-package-9844102.webp?v=1770318268&width=220)
In StockCobb Tuning Stage 1+ Drivetrain Package with Double Adjustable Shifter - White/Stealth Black
Fits: 04-21 STI 6MT
Only 8 leftRegular price $375.00Sale price $375.00 Regular priceUnit price per$375.00 -
![Cobb [Subaru STI] 6MT Stage 1+ Drivetrain Package - JDMuscleEngine Package Dealscobb215X01P-W-RD](//jdmuscleusa.com/cdn/shop/files/cobb-subaru-sti-6mt-stage-1-drivetrain-package-8750611.webp?v=1770318269&width=220)
![Cobb [Subaru STI] 6MT Stage 1+ Drivetrain Package - JDMuscleEngine Package Dealscobb215X01P-W-RD](//jdmuscleusa.com/cdn/shop/files/cobb-subaru-sti-6mt-stage-1-drivetrain-package-1103748.webp?v=1770318269&width=220)
In StockCobb Tuning Stage 1+ Drivetrain Package with Double Adjustable Shifter - White/Race Red
Fits: 04-21 STI 6MT
Only 8 leftRegular price $375.00Sale price $375.00 Regular priceUnit price per$375.00 -
Invidia Up-Pipe - Subaru Models (Inc. 06-14 WRX / 04-21 STI) | INVHS02SW1UPP
Regular price $290.65Sale price $290.65 Regular priceUnit price per -
![MAPerformance [15 - 21 WRX] Charge Piping Kit - JDMuscleCharge PipesMAP WRX-4G-CPKRaw Finish](//jdmuscleusa.com/cdn/shop/files/maperformance-15-21-wrx-charge-piping-kit-6930377.webp?v=1770321259&width=220)
![MAPerformance [15 - 21 WRX] Charge Piping Kit - JDMuscleCharge PipesMAP WRX-4G-CPKRaw Finish](//jdmuscleusa.com/cdn/shop/files/maperformance-15-21-wrx-charge-piping-kit-7369364.webp?v=1770321259&width=220)
MAPerformance Charge Piping Kit
Fits: 15-21 WRX
Regular price From $249.99Sale price From $249.99 Regular priceUnit price per -
![Cobb [04 - 21 STI Incl. Type RA/S209, 06 - 14 WRX, 06 - 13 FXT] 2in. Stainless Steep Up - Pipe - JDMuscleTurbo Uppipescobb512265](//jdmuscleusa.com/cdn/shop/files/cobb-04-21-sti-incl-type-ras209-06-14-wrx-06-13-fxt-2in-stainless-steep-up-pipe-5145936.webp?v=1770321317&width=220)
![Cobb [04 - 21 STI Incl. Type RA/S209, 06 - 14 WRX, 06 - 13 FXT] 2in. Stainless Steep Up - Pipe - JDMuscleTurbo Uppipescobb512265](//jdmuscleusa.com/cdn/shop/files/cobb-04-21-sti-incl-type-ras209-06-14-wrx-06-13-fxt-2in-stainless-steep-up-pipe-2357880.webp?v=1770321317&width=220)
In StockCobb Tuning 2-Inch Stainless Steel Up-Pipe
Fits: 06-14 WRX, 04-21 STI (Incl. Type RA/S209), 06-13 Forester XT
Regular price $275.00Sale price $275.00 Regular priceUnit price per$275.00 -
![Torque Solution [06 - 14 WRX, 07 - 21 STI] Lightweight Alternator Pulley - Black | TS - SU - 878 - JDMusclePulleystqsTS-SU-878](//jdmuscleusa.com/cdn/shop/files/torque-solution-06-14-wrx-07-21-sti-lightweight-alternator-pulley-black-ts-su-878-3315618.webp?v=1770321802&width=220)
Up to $2.99 offTorque Solution Lightweight Alternator Pulley-Black | TS-SU-878
Fits: 06-14 WRX, 07-21 STI
Regular price $47.00Sale price $47.00 Regular priceUnit price per$49.99
![[04 - 17 STI] FactionFab Slotted Front Rotor V2 Dual Drilled 5x100/114 - JDMuscleBrake RotorsFFA1.10290.1](http://jdmuscleusa.com/cdn/shop/files/04-17-sti-factionfab-slotted-front-rotor-v2-dual-drilled-5x100114-5707576.jpg?v=1772881220&width=220)
![[04 - 17 STI] FactionFab Slotted Front Rotor V2 Dual Drilled 5x100/114 - JDMuscleBrake RotorsFFA1.10290.1](http://jdmuscleusa.com/cdn/shop/files/04-17-sti-factionfab-slotted-front-rotor-v2-dual-drilled-5x100114-2712122.jpg?v=1772881220&width=220)
![Perrin [08-26 WRX, 08-21 STI, 13-26 BRZ, 22-26 GR86, 13-16 FR-S, 17-20 86, 08-25 Impreza, 13-20 Crosstrek, 08-18 Forester, 07-26 Outback, 07-25 Legacy] Long Exhaust Hanger Kit - 5 Pieces](http://jdmuscleusa.com/cdn/shop/files/PSP-EXT-711_01.jpg?v=1789321345&width=220)
![OVERTAKE [04 - 21 STI, 06 - 07 WRX] Drive - By - Wire Throttle Body Gasket - Subaru EJ - JDMuscleGasketsA10479](http://jdmuscleusa.com/cdn/shop/files/overtake-04-21-sti-06-07-wrx-drive-by-wire-throttle-body-gasket-subaru-ej-9296133.jpg?v=1770312010&width=220)
![OVERTAKE [04-21 STI, 02-07 WRX, 04-08 FXT] Silicone Turbo Inlet Hose](http://jdmuscleusa.com/cdn/shop/files/A10222BLU-overtake-turbo-inlet-04-21-sti-blue-1.jpg?v=1787236610&width=220)
![OVERTAKE [04-21 STI, 02-07 WRX, 04-08 FXT] Silicone Turbo Inlet Hose](http://jdmuscleusa.com/cdn/shop/files/A10222BLU-overtake-turbo-inlet-04-21-sti-blue-2_76d95b7a-a482-4629-8e42-53727f1cb322.jpg?v=1787236610&width=220)
![Cobb [Subaru STI] 6MT Stage 1+ Drivetrain Package - JDMuscleEngine Package Dealscobb215X01P-W-BK](http://jdmuscleusa.com/cdn/shop/files/cobb-subaru-sti-6mt-stage-1-drivetrain-package-4281310.webp?v=1770318268&width=220)
![Cobb [Subaru STI] 6MT Stage 1+ Drivetrain Package - JDMuscleEngine Package Dealscobb215X01P-W-BK](http://jdmuscleusa.com/cdn/shop/files/cobb-subaru-sti-6mt-stage-1-drivetrain-package-9844102.webp?v=1770318268&width=220)
![Cobb [Subaru STI] 6MT Stage 1+ Drivetrain Package - JDMuscleEngine Package Dealscobb215X01P-W-RD](http://jdmuscleusa.com/cdn/shop/files/cobb-subaru-sti-6mt-stage-1-drivetrain-package-8750611.webp?v=1770318269&width=220)
![Cobb [Subaru STI] 6MT Stage 1+ Drivetrain Package - JDMuscleEngine Package Dealscobb215X01P-W-RD](http://jdmuscleusa.com/cdn/shop/files/cobb-subaru-sti-6mt-stage-1-drivetrain-package-1103748.webp?v=1770318269&width=220)
![MAPerformance [15 - 21 WRX] Charge Piping Kit - JDMuscleCharge PipesMAP WRX-4G-CPKRaw Finish](http://jdmuscleusa.com/cdn/shop/files/maperformance-15-21-wrx-charge-piping-kit-6930377.webp?v=1770321259&width=220)
![MAPerformance [15 - 21 WRX] Charge Piping Kit - JDMuscleCharge PipesMAP WRX-4G-CPKRaw Finish](http://jdmuscleusa.com/cdn/shop/files/maperformance-15-21-wrx-charge-piping-kit-7369364.webp?v=1770321259&width=220)
![Cobb [04 - 21 STI Incl. Type RA/S209, 06 - 14 WRX, 06 - 13 FXT] 2in. Stainless Steep Up - Pipe - JDMuscleTurbo Uppipescobb512265](http://jdmuscleusa.com/cdn/shop/files/cobb-04-21-sti-incl-type-ras209-06-14-wrx-06-13-fxt-2in-stainless-steep-up-pipe-5145936.webp?v=1770321317&width=220)
![Cobb [04 - 21 STI Incl. Type RA/S209, 06 - 14 WRX, 06 - 13 FXT] 2in. Stainless Steep Up - Pipe - JDMuscleTurbo Uppipescobb512265](http://jdmuscleusa.com/cdn/shop/files/cobb-04-21-sti-incl-type-ras209-06-14-wrx-06-13-fxt-2in-stainless-steep-up-pipe-2357880.webp?v=1770321317&width=220)
![Torque Solution [06 - 14 WRX, 07 - 21 STI] Lightweight Alternator Pulley - Black | TS - SU - 878 - JDMusclePulleystqsTS-SU-878](http://jdmuscleusa.com/cdn/shop/files/torque-solution-06-14-wrx-07-21-sti-lightweight-alternator-pulley-black-ts-su-878-3315618.webp?v=1770321802&width=220)