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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Cobb Tuning 12mm Urethane Exhaust Hanger
Fits: 08-25* WRX, 08-21 STI, 22+ BRZ/GR86, 14-18 Forester XT, 05-09 Legacy GT/Spec B, 05-09 Outback XT, 09-10 Impreza 2.5GT
Regular price $25.00Sale price $25.00 Regular priceUnit price per$25.00 -
Forced Performance 04-21 Subaru STI/ 02-07 WRX FP GREEN 57S Turbocharger 84MM CH 8CM Turbine Housing External Wastegate Oil Line Included | 2029130
Regular price $7,374.00Sale price $7,374.00 Regular priceUnit price per$7,374.00 -
![APR [15-21 WRX/STI] Carbon Fiber Radiator Cooling Plate | CF-815002 - JDMuscleRadiator ShroudsAPRCF-815002](//jdmuscleusa.com/cdn/shop/products/apr-15-21-wrxsti-carbon-fiber-radiator-cooling-plate-cf-815002-7053352.jpg?v=1783899622&width=220)
![APR [15-21 WRX/STI] Carbon Fiber Radiator Cooling Plate | CF-815002 - JDMuscleRadiator ShroudsAPRCF-815002](//jdmuscleusa.com/cdn/shop/products/apr-15-21-wrxsti-carbon-fiber-radiator-cooling-plate-cf-815002-2532487.jpg?v=1783899623&width=220)
APR Carbon Fiber Radiator Cooling Plate | CF-815002
Fits: 15-21 WRX/STI
Regular price $264.00Sale price $264.00 Regular priceUnit price per$264.00 -
![AWE Tuning [11-25 WRX Sedan, 11-21 STI Sedan] Touring to Track Conversion Axle Back Exhaust - JDMuscleAxle Back Exhaustsawe3820-41004](//jdmuscleusa.com/cdn/shop/products/awe-tuning-11-25-wrx-sedan-11-21-sti-sedan-touring-to-track-conversion-axle-back-exhaust-8317351.jpg?v=1786515856&width=220)
Up to $20.79 off
In StockAWE Tuning Touring to Track Conversion Axle Back Exhaust
Fits: 11-25 WRX Sedan, 11-21 STI Sedan
Only 1 leftRegular price $395.00Sale price $395.00 Regular priceUnit price per$415.79 -
![Seibon Carbon Fiber Hood/Trunk Prop w/ Seibon Logo [Universal] | HOODPROP-S](//jdmuscleusa.com/cdn/shop/products/seibon-carbon-fiber-hoodtrunk-prop-w-seibon-logo-universal-hoodprop-s-hood-dampers-seibon-seihoodprop-s.jpg?v=1614519856&width=220)
![Seibon Carbon Fiber Hood/Trunk Prop w/ Seibon Logo [Universal] | HOODPROP-S](//jdmuscleusa.com/cdn/shop/files/Siebon_Authorized_Dealer_963508de-6254-4ebb-b06f-da40665ca67a.png?v=1738252169&width=220)
Up to $13 off
In StockSeibon Carbon Fiber Hood/Trunk Prop w/ Seibon Logo
Fits: Universal
Regular price $117.00Sale price $117.00 Regular priceUnit price per$130.00 -
In StockInjector Dynamics 1050cc Top Feed Fuel Injectors | 1050.48.11.WRX.4
Fits: 02-14 WRX, 07-21 STI
Regular price $600.60Sale price $600.60 Regular priceUnit price per$600.60 -
Up to $89.40 offInvidia Uppipe No EGT Bung | HS06SW1UPP
Fits: 02-14 WRX, 04-21 STI
Regular price $311.00Sale price $311.00 Regular priceUnit price per$400.40 -
Up to $27.20 off
In StockInvidia 3in Downpipe to 2.5in Exhaust Adapter
Fits: 08-21 WRX/STI, 04-10 Forester
Only 15 leftRegular price $61.00Sale price $61.00 Regular priceUnit price per$88.20 -
Up to $19.05 off
In StockMishimoto Aluminum Coolant Expansion Tank
Fits: 02-07 WRX, 04-21 STI
Only 9 leftRegular price $188.95Sale price $188.95 Regular priceUnit price per$208.00 -
Up to $189 off
In StockTomei 11-21 WRX/STI FULL Titanium Muffler Expreme Ti Type-D
Only 5 leftRegular price $1,701.00Sale price $1,701.00 Regular priceUnit price per$1,890.00 -
![IAG [02 - 14 WRX, 04 - 21 STI, 05 - 09 LGT, 04 - 13 FXT] Street Series Oil Pan Package | IAG - ENG - 2201 - JDMuscleOil PansIAG-ENG-2201SLSilver](//jdmuscleusa.com/cdn/shop/products/iag-02-14-wrx-04-21-sti-05-09-lgt-04-13-fxt-street-series-oil-pan-package-iag-eng-2201-8112980.jpg?v=1770331224&width=220)
![IAG [02 - 14 WRX, 04 - 21 STI, 05 - 09 LGT, 04 - 13 FXT] Street Series Oil Pan Package | IAG - ENG - 2201 - JDMuscleOil PansIAG-ENG-2201SLSilver](//jdmuscleusa.com/cdn/shop/products/iag-02-14-wrx-04-21-sti-05-09-lgt-04-13-fxt-street-series-oil-pan-package-iag-eng-2201-2248205.jpg?v=1770331225&width=220)
In StockIAG Street Series Oil Pan Package
Fits: 02-14 WRX, 04-21 STI, 05-09 LGT, 04-13 FXT
Only 2 leftRegular price From $699.99Sale price From $699.99 Regular priceUnit price per$699.99 -
![Mishimoto [11 - 14 WRX, 11 - 21 STI] Ignition Coil Set of 4 | MMIG - STI - 1104 - JDMuscleCoil PacksmisMMIG-STI-1104](//jdmuscleusa.com/cdn/shop/products/mishimoto-11-14-wrx-11-21-sti-ignition-coil-set-of-4-mmig-sti-1104-4428028.png?v=1770331757&width=220)
![Mishimoto [11 - 14 WRX, 11 - 21 STI] Ignition Coil Set of 4 | MMIG - STI - 1104 - JDMuscleCoil PacksmisMMIG-STI-1104](//jdmuscleusa.com/cdn/shop/products/mishimoto-11-14-wrx-11-21-sti-ignition-coil-set-of-4-mmig-sti-1104-4586879.png?v=1770331757&width=220)
Up to $21.05 off
In StockMishimoto Ignition Coil Set of 4
Fits: 11-14 WRX, 11-21 STI
Only 3 leftRegular price $214.95Sale price $214.95 Regular priceUnit price per$236.00 -
![Turbosmart [02 - 07 WRX, 04 - 21 STI] 34mm Blow Off Valve Plug | TS - 0205 - 2016 - JDMuscleBlow Off ValvesTBSTS-0205-2016](//jdmuscleusa.com/cdn/shop/products/turbosmart-02-07-wrx-04-21-sti-34mm-blow-off-valve-plug-ts-0205-2016-4504580.jpg?v=1770334633&width=220)
Up to $1.60 off
In StockTurbosmart 34mm Blow Off Valve Plug
Fits: 02-07 WRX, 04-21 STI
Only 7 leftRegular price $14.39Sale price $14.39 Regular priceUnit price per$15.99 -
![COBB [02 - 14 WRX, 07 - 21 STI, 07 - 12 Legacy GT, 06 - 13 Forester XT] Top Feed 1050X Fuel Injectors | 312150 - JDMuscleFuel Injectors and Accessoriescobb312150](//jdmuscleusa.com/cdn/shop/products/cobb-02-14-wrx-07-21-sti-07-12-legacy-gt-06-13-forester-xt-top-feed-1050x-fuel-injectors-312150-5750979.jpg?v=1770336558&width=220)
![COBB [02 - 14 WRX, 07 - 21 STI, 07 - 12 Legacy GT, 06 - 13 Forester XT] Top Feed 1050X Fuel Injectors | 312150 - JDMuscleFuel Injectors and Accessoriescobb312150](//jdmuscleusa.com/cdn/shop/products/cobb-02-14-wrx-07-21-sti-07-12-legacy-gt-06-13-forester-xt-top-feed-1050x-fuel-injectors-312150-9693839.jpg?v=1770336559&width=220)
In StockCobb Tuning Top Feed 1050X Fuel Injectors
Fits: 02-14 WRX, 07-21 STI, 07-12 Legacy GT, 06-13 Forester XT
Regular price $625.00Sale price $625.00 Regular priceUnit price per$625.00 -
![PLM [08 - 14 WRX, 08 - 21 STI] Power Driven WRX & STI Downpipe - JDMuscleFront Pipes and Downpipes / J - PipesPLM-SUB-DP-0814-CATHigh Flow Cat](//jdmuscleusa.com/cdn/shop/products/plm-08-14-wrx-08-21-sti-power-driven-wrx-sti-downpipe-4751653.jpg?v=1770336633&width=220)
![PLM [08 - 14 WRX, 08 - 21 STI] Power Driven WRX & STI Downpipe - JDMuscleFront Pipes and Downpipes / J - PipesPLM-SUB-DP-0814-CATHigh Flow Cat](//jdmuscleusa.com/cdn/shop/products/plm-08-14-wrx-08-21-sti-power-driven-wrx-sti-downpipe-3448305.jpg?v=1770336633&width=220)
Up to $220 off
In StockPLM Power Driven WRX & STI Downpipe
Fits: 08-14 WRX, 08-21 STI
Only 8 leftRegular price $575.00Sale price $575.00 Regular priceUnit price per$795.00 -
![GrimmSpeed [15-21 WRX/STI] Bumper Bar Black Powder | 090261 - JDMuscleIntercooler Installation Kitsgrm090261](//jdmuscleusa.com/cdn/shop/products/grimmspeed-15-21-wrxsti-bumper-bar-black-powder-090261-7439986.jpg?v=1783897824&width=220)
![GrimmSpeed [15-21 WRX/STI] Bumper Bar Black Powder | 090261 - JDMuscleIntercooler Installation Kitsgrm090261](//jdmuscleusa.com/cdn/shop/products/grimmspeed-15-21-wrxsti-bumper-bar-black-powder-090261-5782082.jpg?v=1783897824&width=220)
In StockGrimmSpeed Bumper Bar Black Powder | 090261
Fits: 15-21 WRX/STI
Only 13 leftRegular price $285.00Sale price $285.00 Regular priceUnit price per$285.00
![APR [15-21 WRX/STI] Carbon Fiber Radiator Cooling Plate | CF-815002 - JDMuscleRadiator ShroudsAPRCF-815002](http://jdmuscleusa.com/cdn/shop/products/apr-15-21-wrxsti-carbon-fiber-radiator-cooling-plate-cf-815002-7053352.jpg?v=1783899622&width=220)
![APR [15-21 WRX/STI] Carbon Fiber Radiator Cooling Plate | CF-815002 - JDMuscleRadiator ShroudsAPRCF-815002](http://jdmuscleusa.com/cdn/shop/products/apr-15-21-wrxsti-carbon-fiber-radiator-cooling-plate-cf-815002-2532487.jpg?v=1783899623&width=220)
![AWE Tuning [11-25 WRX Sedan, 11-21 STI Sedan] Touring to Track Conversion Axle Back Exhaust - JDMuscleAxle Back Exhaustsawe3820-41004](http://jdmuscleusa.com/cdn/shop/products/awe-tuning-11-25-wrx-sedan-11-21-sti-sedan-touring-to-track-conversion-axle-back-exhaust-8317351.jpg?v=1786515856&width=220)
![Seibon Carbon Fiber Hood/Trunk Prop w/ Seibon Logo [Universal] | HOODPROP-S](http://jdmuscleusa.com/cdn/shop/products/seibon-carbon-fiber-hoodtrunk-prop-w-seibon-logo-universal-hoodprop-s-hood-dampers-seibon-seihoodprop-s.jpg?v=1614519856&width=220){kind=logo}
![Seibon Carbon Fiber Hood/Trunk Prop w/ Seibon Logo [Universal] | HOODPROP-S](http://jdmuscleusa.com/cdn/shop/files/Siebon_Authorized_Dealer_963508de-6254-4ebb-b06f-da40665ca67a.png?v=1738252169&width=220)
![IAG [02 - 14 WRX, 04 - 21 STI, 05 - 09 LGT, 04 - 13 FXT] Street Series Oil Pan Package | IAG - ENG - 2201 - JDMuscleOil PansIAG-ENG-2201SLSilver](http://jdmuscleusa.com/cdn/shop/products/iag-02-14-wrx-04-21-sti-05-09-lgt-04-13-fxt-street-series-oil-pan-package-iag-eng-2201-8112980.jpg?v=1770331224&width=220)
![IAG [02 - 14 WRX, 04 - 21 STI, 05 - 09 LGT, 04 - 13 FXT] Street Series Oil Pan Package | IAG - ENG - 2201 - JDMuscleOil PansIAG-ENG-2201SLSilver](http://jdmuscleusa.com/cdn/shop/products/iag-02-14-wrx-04-21-sti-05-09-lgt-04-13-fxt-street-series-oil-pan-package-iag-eng-2201-2248205.jpg?v=1770331225&width=220)
![Mishimoto [11 - 14 WRX, 11 - 21 STI] Ignition Coil Set of 4 | MMIG - STI - 1104 - JDMuscleCoil PacksmisMMIG-STI-1104](http://jdmuscleusa.com/cdn/shop/products/mishimoto-11-14-wrx-11-21-sti-ignition-coil-set-of-4-mmig-sti-1104-4428028.png?v=1770331757&width=220)
![Mishimoto [11 - 14 WRX, 11 - 21 STI] Ignition Coil Set of 4 | MMIG - STI - 1104 - JDMuscleCoil PacksmisMMIG-STI-1104](http://jdmuscleusa.com/cdn/shop/products/mishimoto-11-14-wrx-11-21-sti-ignition-coil-set-of-4-mmig-sti-1104-4586879.png?v=1770331757&width=220)
![Turbosmart [02 - 07 WRX, 04 - 21 STI] 34mm Blow Off Valve Plug | TS - 0205 - 2016 - JDMuscleBlow Off ValvesTBSTS-0205-2016](http://jdmuscleusa.com/cdn/shop/products/turbosmart-02-07-wrx-04-21-sti-34mm-blow-off-valve-plug-ts-0205-2016-4504580.jpg?v=1770334633&width=220)
![COBB [02 - 14 WRX, 07 - 21 STI, 07 - 12 Legacy GT, 06 - 13 Forester XT] Top Feed 1050X Fuel Injectors | 312150 - JDMuscleFuel Injectors and Accessoriescobb312150](http://jdmuscleusa.com/cdn/shop/products/cobb-02-14-wrx-07-21-sti-07-12-legacy-gt-06-13-forester-xt-top-feed-1050x-fuel-injectors-312150-5750979.jpg?v=1770336558&width=220)
![COBB [02 - 14 WRX, 07 - 21 STI, 07 - 12 Legacy GT, 06 - 13 Forester XT] Top Feed 1050X Fuel Injectors | 312150 - JDMuscleFuel Injectors and Accessoriescobb312150](http://jdmuscleusa.com/cdn/shop/products/cobb-02-14-wrx-07-21-sti-07-12-legacy-gt-06-13-forester-xt-top-feed-1050x-fuel-injectors-312150-9693839.jpg?v=1770336559&width=220)
![PLM [08 - 14 WRX, 08 - 21 STI] Power Driven WRX & STI Downpipe - JDMuscleFront Pipes and Downpipes / J - PipesPLM-SUB-DP-0814-CATHigh Flow Cat](http://jdmuscleusa.com/cdn/shop/products/plm-08-14-wrx-08-21-sti-power-driven-wrx-sti-downpipe-4751653.jpg?v=1770336633&width=220)
![PLM [08 - 14 WRX, 08 - 21 STI] Power Driven WRX & STI Downpipe - JDMuscleFront Pipes and Downpipes / J - PipesPLM-SUB-DP-0814-CATHigh Flow Cat](http://jdmuscleusa.com/cdn/shop/products/plm-08-14-wrx-08-21-sti-power-driven-wrx-sti-downpipe-3448305.jpg?v=1770336633&width=220)
![GrimmSpeed [15-21 WRX/STI] Bumper Bar Black Powder | 090261 - JDMuscleIntercooler Installation Kitsgrm090261](http://jdmuscleusa.com/cdn/shop/products/grimmspeed-15-21-wrxsti-bumper-bar-black-powder-090261-7439986.jpg?v=1783897824&width=220)
![GrimmSpeed [15-21 WRX/STI] Bumper Bar Black Powder | 090261 - JDMuscleIntercooler Installation Kitsgrm090261](http://jdmuscleusa.com/cdn/shop/products/grimmspeed-15-21-wrxsti-bumper-bar-black-powder-090261-5782082.jpg?v=1783897824&width=220)