2015-2021 Subaru WRX Engine Parts & Upgrades
Shop 2015-2021 subaru wrx engine parts and performance upgrades at JDMuscle. We carry the top brands with guaranteed fitment for your 2015-2021 Subaru WRX.
2015-2021 Subaru WRX Engine
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![Go Fast Bits [15-21 WRX, 14-18 Forester XT] Hybrid Dual Outlet Blow Off Valve | T9207](//jdmuscleusa.com/cdn/shop/products/go-fast-bits-hybrid-dual-outlet-valve-15-20-subaru-wrx-14-18-fxt-t9207-blow-off-valves-go-fast-bits-gfbt9207.jpg?v=1614545786&width=220)
Up to $26.09 off
In StockGo Fast Bits Hybrid Dual Outlet Blow Off Valve
Fits: 15-21 WRX
Only 11 leftRegular price $234.81Sale price $234.81 Regular priceUnit price per$260.90 -
![GrimmSpeed [02-07 WRX, 04-21 STI] Blow Off Valve Flange Gasket | 020023](//jdmuscleusa.com/cdn/shop/products/grimmspeed-subaru-intercooler-bov-gasket-wrx-2002-2005-sti-2004-2020-020023-gaskets-grimmspeed-grm020023.jpg?v=1614517904&width=220)
![GrimmSpeed [02-07 WRX, 04-21 STI] Blow Off Valve Flange Gasket | 020023](//jdmuscleusa.com/cdn/shop/products/grimmspeed-subaru-intercooler-bov-gasket-wrx-2002-2005-sti-2004-2020-020023-gaskets-grimmspeed-grm020023-2.jpg?v=1614675514&width=220)
In StockGrimmSpeed Blow Off Valve Flange Gasket
Fits: 02-07 WRX, 04-21 STI
Only 1 leftRegular price $29.00Sale price $29.00 Regular priceUnit price per$29.00 -
![Cobb [08 - 14 WRX/ 08 - 21 STI] Redline Carbon Fiber Alternator Cover Gloss Finish | 422600 - JDMuscleAlternator Coverscobb422600](//jdmuscleusa.com/cdn/shop/products/cobb-08-14-wrx-08-21-sti-redline-carbon-fiber-alternator-cover-gloss-finish-422600-8998082.jpg?v=1770336383&width=220)
![Cobb [08 - 14 WRX/ 08 - 21 STI] Redline Carbon Fiber Alternator Cover Gloss Finish | 422600 - JDMuscleAlternator Coverscobb422600](//jdmuscleusa.com/cdn/shop/products/cobb-08-14-wrx-08-21-sti-redline-carbon-fiber-alternator-cover-gloss-finish-422600-5259871.jpg?v=1770336383&width=220)
In StockCobb Tuning Redline Carbon Fiber Alternator Cover - Gloss Finish
Fits: 08-14 WRX, 08-21 STI
Only 20 leftRegular price $183.00Sale price $183.00 Regular priceUnit price per$183.00 -
![COBB [15 - 21 WRX] Stage 1+ SF Intake Power Package | SUB0040W1P - JDMuscleStaged Power PackagescobbSUB0041W1P](//jdmuscleusa.com/cdn/shop/files/cobb-15-21-wrx-stage-1-sf-intake-power-package-sub0040w1p-2442425.jpg?v=1770336569&width=220)
![COBB [15 - 21 WRX] Stage 1+ SF Intake Power Package | SUB0040W1P - JDMuscleStaged Power PackagescobbSUB0041W1P](//jdmuscleusa.com/cdn/shop/files/cobb-15-21-wrx-stage-1-sf-intake-power-package-sub0040w1p-8220317.jpg?v=1770336569&width=220)
In StockCobb Tuning Stage 1+ SF Intake Power Package
Fits: 15-21 WRX
Regular price $1,180.00Sale price $1,180.00 Regular priceUnit price per$1,180.00 -
![GrimmSpeed 3in Downpipe to Stock Cat-Back Adapter [Subaru Turbo Models inc. 15-21 WRX/STI] | 077044](//jdmuscleusa.com/cdn/shop/products/grimmspeed-3in-downpipe-adapter-for-subaru-077044-exhaust-gaskets-and-hardware-grimmspeed-grm077044.jpg?v=1614517852&width=220)
In StockGrimmSpeed 3in Downpipe to Stock Cat-Back Adapter
Fits: Subaru Turbo Models inc. 15-21 WRX/STI
Regular price $81.00Sale price $81.00 Regular priceUnit price per$81.00 -
![Grimmspeed [15-21 WRX/STI] Fender Shroud - Red | 096048](//jdmuscleusa.com/cdn/shop/products/grimmspeed-fender-shroud-red-subaru-wrx-sti-2015-2020-096048-fender-shrouds-grimmspeed-grm096048.jpg?v=1614517712&width=220)
![Grimmspeed [15-21 WRX/STI] Fender Shroud - Red | 096048](//jdmuscleusa.com/cdn/shop/products/grimmspeed-fender-shroud-red-subaru-wrx-sti-2015-2020-096048-fender-shrouds-grimmspeed-grm096048-2.jpg?v=1614675409&width=220)
In StockGrimmspeed Fender Shroud - Red | 096048
Fits: 15-21 WRX/STI
Only 5 leftRegular price $124.00Sale price $124.00 Regular priceUnit price per$124.00 -
In StockOVERTAKE Adjustable Exhaust Hanger - 12mm
Fits: 08-26 WRX, 08-21 STI, 13-26 BRZ
Regular price From $13.00Sale price From $13.00 Regular priceUnit price per$13.00 -
![Tomei [15-21 WRX] Unequal Length Exhaust Manifold FA20DIT | TB6010-SB04A - JDMuscleExhaust Headers and ManifoldsTOMTB6010-SB04A](//jdmuscleusa.com/cdn/shop/products/tomei-15-21-wrx-unequal-length-exhaust-manifold-fa20dit-tb6010-sb04a-4186630.jpg?v=1783899635&width=220)
![Tomei [15-21 WRX] Unequal Length Exhaust Manifold FA20DIT | TB6010-SB04A - JDMuscleExhaust Headers and ManifoldsTOMTB6010-SB04A](//jdmuscleusa.com/cdn/shop/products/tomei-15-21-wrx-unequal-length-exhaust-manifold-fa20dit-tb6010-sb04a-9805369.jpg?v=1783899635&width=220)
Up to $79 off
In StockTomei Unequal Length Exhaust Manifold FA20DIT | TB6010-SB04A
Fits: 15-21 WRX
Only 4 leftRegular price $711.00Sale price $711.00 Regular priceUnit price per$790.00 -
In StockGrimmSpeed Version 2 Turbo Heat Shield
Fits: 02-14 WRX, 04-21 STI, 05-12 LGT, 04-13 FXT
Regular price From $110.00Sale price From $110.00 Regular priceUnit price per$110.00 -
![PLM [15-21 WRX] Equal Length Turbo Header Manifold | PLM-SUBARU-HEADER-GK-EL](//jdmuscleusa.com/cdn/shop/files/Screenshot2025-04-21220233.png?v=1748367383&width=220)
![PLM [15-21 WRX] Equal Length Turbo Header Manifold | PLM-SUBARU-HEADER-GK-EL](//jdmuscleusa.com/cdn/shop/files/Screenshot2025-04-21220301.png?v=1748367383&width=220)
Up to $300 off
In StockPLM Equal Length Turbo Header Manifold | PLM-SUBARU-HEADER-GK-EL
Fits: 15-21 WRX
Only 4 leftRegular price $495.00Sale price $495.00 Regular priceUnit price per$795.00 -
![BLOX Racing [15 - 21 WRX/STI] Muffler Delete Kit - Black Tip | BXEX - 51104 - BK - JDMuscleMufflersbloBXEX-51104-BK](//jdmuscleusa.com/cdn/shop/products/blox-racing-15-21-wrxsti-muffler-delete-kit-black-tip-bxex-51104-bk-8741182.png?v=1770331331&width=220)
Up to $36 off
In StockBLOX Racing Muffler Delete Kit - Black Tip
Fits: 15-21 WRX/STI
Only 8 leftRegular price $324.00Sale price $324.00 Regular priceUnit price per$360.00 -
![HKS [02 - 25 WRX/STI, 13 - 21 BRZ/FRS/86] 1.1 Bar Limited Edition Radiator Cap | 15009 - AK004 - JDMuscleRadiator CapsHKS15009-AK004](//jdmuscleusa.com/cdn/shop/products/hks-02-25-wrxsti-13-21-brzfrs86-11-bar-limited-edition-radiator-cap-15009-ak004-2331844.jpg?v=1770332249&width=220)
![HKS [02 - 25 WRX/STI, 13 - 21 BRZ/FRS/86] 1.1 Bar Limited Edition Radiator Cap | 15009 - AK004 - JDMuscleRadiator CapsHKS15009-AK004](//jdmuscleusa.com/cdn/shop/products/hks-02-25-wrxsti-13-21-brzfrs86-11-bar-limited-edition-radiator-cap-15009-ak004-7878472.jpg?v=1770332250&width=220)
In StockHKS 1.1 Bar Limited Edition Radiator Cap
Fits: 02-26 WRX/STI, 13-21 BRZ/FRS/86
Regular price $42.00Sale price $42.00 Regular priceUnit price per$42.00 -
![COBB [15 - 21 WRX] 3 - Port Boost Control Solenoid (BCS) | 714750 - JDMuscleBoost Control Solenoidscobb714750](//jdmuscleusa.com/cdn/shop/files/cobb-15-21-wrx-3-port-boost-control-solenoid-bcs-714750-3939595.jpg?v=1770336436&width=220)
![COBB [15 - 21 WRX] 3 - Port Boost Control Solenoid (BCS) | 714750 - JDMuscleBoost Control Solenoidscobb714750](//jdmuscleusa.com/cdn/shop/products/cobb-15-21-wrx-3-port-boost-control-solenoid-bcs-714750-7256301.jpg?v=1770336436&width=220)
In StockCobb Tuning 3-Port Boost Control Solenoid (BCS)
Fits: 15-21 WRX
Regular price $217.00Sale price $217.00 Regular priceUnit price per$217.00 -
![Go Fast Bit [02-07 WRX, 04-21 STI] Hybrid Dual Outlet Blow Off Valve | T9203](//jdmuscleusa.com/cdn/shop/products/go-fast-bits-hybrid-dual-outlet-valve-02-07-subaru-wrx-04-20-sti-05-08-fxt-t9203-blow-off-valves-go-fast-bits-gfbt9203.jpg?v=1614545897&width=220)
Up to $26.09 off
In StockGo Fast Bit Hybrid Dual Outlet Blow Off Valve
Fits: 02-07 WRX, 04-21 STI
Only 15 leftRegular price $234.81Sale price $234.81 Regular priceUnit price per$260.90 -
Up to $35.65 off
In StockGo Fast Bits TMS Respons Hybrid Blow Off Valve
Fits: 02-07 WRX, 04-21 STI
Only 4 leftRegular price $320.85Sale price $320.85 Regular priceUnit price per$356.50 -
Up to $85.22 off
In StockFluidampr Balanced Damper
Fits: 02-14 WRX, 04-21 STI
Regular price $482.92Sale price $482.92 Regular priceUnit price per$568.14
![Go Fast Bits [15-21 WRX, 14-18 Forester XT] Hybrid Dual Outlet Blow Off Valve | T9207](http://jdmuscleusa.com/cdn/shop/products/go-fast-bits-hybrid-dual-outlet-valve-15-20-subaru-wrx-14-18-fxt-t9207-blow-off-valves-go-fast-bits-gfbt9207.jpg?v=1614545786&width=220)
![GrimmSpeed [02-07 WRX, 04-21 STI] Blow Off Valve Flange Gasket | 020023](http://jdmuscleusa.com/cdn/shop/products/grimmspeed-subaru-intercooler-bov-gasket-wrx-2002-2005-sti-2004-2020-020023-gaskets-grimmspeed-grm020023.jpg?v=1614517904&width=220)
![GrimmSpeed [02-07 WRX, 04-21 STI] Blow Off Valve Flange Gasket | 020023](http://jdmuscleusa.com/cdn/shop/products/grimmspeed-subaru-intercooler-bov-gasket-wrx-2002-2005-sti-2004-2020-020023-gaskets-grimmspeed-grm020023-2.jpg?v=1614675514&width=220)
![Cobb [08 - 14 WRX/ 08 - 21 STI] Redline Carbon Fiber Alternator Cover Gloss Finish | 422600 - JDMuscleAlternator Coverscobb422600](http://jdmuscleusa.com/cdn/shop/products/cobb-08-14-wrx-08-21-sti-redline-carbon-fiber-alternator-cover-gloss-finish-422600-8998082.jpg?v=1770336383&width=220)
![Cobb [08 - 14 WRX/ 08 - 21 STI] Redline Carbon Fiber Alternator Cover Gloss Finish | 422600 - JDMuscleAlternator Coverscobb422600](http://jdmuscleusa.com/cdn/shop/products/cobb-08-14-wrx-08-21-sti-redline-carbon-fiber-alternator-cover-gloss-finish-422600-5259871.jpg?v=1770336383&width=220)
![COBB [15 - 21 WRX] Stage 1+ SF Intake Power Package | SUB0040W1P - JDMuscleStaged Power PackagescobbSUB0041W1P](http://jdmuscleusa.com/cdn/shop/files/cobb-15-21-wrx-stage-1-sf-intake-power-package-sub0040w1p-2442425.jpg?v=1770336569&width=220)
![COBB [15 - 21 WRX] Stage 1+ SF Intake Power Package | SUB0040W1P - JDMuscleStaged Power PackagescobbSUB0041W1P](http://jdmuscleusa.com/cdn/shop/files/cobb-15-21-wrx-stage-1-sf-intake-power-package-sub0040w1p-8220317.jpg?v=1770336569&width=220)
![GrimmSpeed 3in Downpipe to Stock Cat-Back Adapter [Subaru Turbo Models inc. 15-21 WRX/STI] | 077044](http://jdmuscleusa.com/cdn/shop/products/grimmspeed-3in-downpipe-adapter-for-subaru-077044-exhaust-gaskets-and-hardware-grimmspeed-grm077044.jpg?v=1614517852&width=220)
![Grimmspeed [15-21 WRX/STI] Fender Shroud - Red | 096048](http://jdmuscleusa.com/cdn/shop/products/grimmspeed-fender-shroud-red-subaru-wrx-sti-2015-2020-096048-fender-shrouds-grimmspeed-grm096048.jpg?v=1614517712&width=220)
![Grimmspeed [15-21 WRX/STI] Fender Shroud - Red | 096048](http://jdmuscleusa.com/cdn/shop/products/grimmspeed-fender-shroud-red-subaru-wrx-sti-2015-2020-096048-fender-shrouds-grimmspeed-grm096048-2.jpg?v=1614675409&width=220)
![Tomei [15-21 WRX] Unequal Length Exhaust Manifold FA20DIT | TB6010-SB04A - JDMuscleExhaust Headers and ManifoldsTOMTB6010-SB04A](http://jdmuscleusa.com/cdn/shop/products/tomei-15-21-wrx-unequal-length-exhaust-manifold-fa20dit-tb6010-sb04a-4186630.jpg?v=1783899635&width=220)
![Tomei [15-21 WRX] Unequal Length Exhaust Manifold FA20DIT | TB6010-SB04A - JDMuscleExhaust Headers and ManifoldsTOMTB6010-SB04A](http://jdmuscleusa.com/cdn/shop/products/tomei-15-21-wrx-unequal-length-exhaust-manifold-fa20dit-tb6010-sb04a-9805369.jpg?v=1783899635&width=220)
![PLM [15-21 WRX] Equal Length Turbo Header Manifold | PLM-SUBARU-HEADER-GK-EL](http://jdmuscleusa.com/cdn/shop/files/Screenshot2025-04-21220233.png?v=1748367383&width=220)
![PLM [15-21 WRX] Equal Length Turbo Header Manifold | PLM-SUBARU-HEADER-GK-EL](http://jdmuscleusa.com/cdn/shop/files/Screenshot2025-04-21220301.png?v=1748367383&width=220)
![BLOX Racing [15 - 21 WRX/STI] Muffler Delete Kit - Black Tip | BXEX - 51104 - BK - JDMuscleMufflersbloBXEX-51104-BK](http://jdmuscleusa.com/cdn/shop/products/blox-racing-15-21-wrxsti-muffler-delete-kit-black-tip-bxex-51104-bk-8741182.png?v=1770331331&width=220)
![HKS [02 - 25 WRX/STI, 13 - 21 BRZ/FRS/86] 1.1 Bar Limited Edition Radiator Cap | 15009 - AK004 - JDMuscleRadiator CapsHKS15009-AK004](http://jdmuscleusa.com/cdn/shop/products/hks-02-25-wrxsti-13-21-brzfrs86-11-bar-limited-edition-radiator-cap-15009-ak004-2331844.jpg?v=1770332249&width=220)
![HKS [02 - 25 WRX/STI, 13 - 21 BRZ/FRS/86] 1.1 Bar Limited Edition Radiator Cap | 15009 - AK004 - JDMuscleRadiator CapsHKS15009-AK004](http://jdmuscleusa.com/cdn/shop/products/hks-02-25-wrxsti-13-21-brzfrs86-11-bar-limited-edition-radiator-cap-15009-ak004-7878472.jpg?v=1770332250&width=220)
![COBB [15 - 21 WRX] 3 - Port Boost Control Solenoid (BCS) | 714750 - JDMuscleBoost Control Solenoidscobb714750](http://jdmuscleusa.com/cdn/shop/files/cobb-15-21-wrx-3-port-boost-control-solenoid-bcs-714750-3939595.jpg?v=1770336436&width=220)
![COBB [15 - 21 WRX] 3 - Port Boost Control Solenoid (BCS) | 714750 - JDMuscleBoost Control Solenoidscobb714750](http://jdmuscleusa.com/cdn/shop/products/cobb-15-21-wrx-3-port-boost-control-solenoid-bcs-714750-7256301.jpg?v=1770336436&width=220)
![Go Fast Bit [02-07 WRX, 04-21 STI] Hybrid Dual Outlet Blow Off Valve | T9203](http://jdmuscleusa.com/cdn/shop/products/go-fast-bits-hybrid-dual-outlet-valve-02-07-subaru-wrx-04-20-sti-05-08-fxt-t9203-blow-off-valves-go-fast-bits-gfbt9203.jpg?v=1614545897&width=220)
