Optimize your Subaru STI 2015-2021 engine's performance with a comprehensive range of top-quality aftermarket parts from industry-leading brands. Elevate the power and efficiency of your vehicle with ETS, HKS, Perrin, Mishimoto, AMS, Grimmspeed, Cobb, Remark, PLM, Turbosmart, IAG Performance, and more. Enhance airflow and filtration through AIR INTAKE DUCTS and COLD AIR INTAKES, while maintaining engine cleanliness with AIR OIL SEPARATORS and CATCH CANS. Experience impeccable control and responsiveness with BLOW OFF VALVES and BOOST CONTROL SOLENOID COVERS, complemented by the reliability of ENGINE MOUNTS and meticulously crafted ENGINE MANAGEMENT HARNESSES. Simplify maintenance and improve overall performance with DIPSTICKS and explore comprehensive ENGINE PACKAGE DEALS for a holistic approach to upgrading your Subaru WRX's engine. Unleash the full potential of your vehicle through precision-engineered components designed to deliver both power and durability, all meticulously designed to give your Subaru STI the edge on the road or track.
2015-2021 Subaru WRX STI Engine Parts
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![ACL [02-14 WRX, 04-21 STI] Rod Bearings | 4B8296](//jdmuscleusa.com/cdn/shop/products/acl-rod-bearing-set-52mm-journal-bearing-wrx-2002-2014-sti-2004-2020-subaru-turbo-models-4b8296-main-bearings-acl-duraglide-75mm-oversize-acl4b8296a-75.jpg?v=1614523038&width=220)
In StockACL Rod Bearings | 4B8296
Fits: 02-14 WRX, 04-21 STI
Regular price From $17.00Sale price From $17.00 Regular priceUnit price per$17.00 -
In StockACL Rod Bearing Set 48mm Journal Bearing WRX 2002-2014 / STI 2004-21 Subaru Turbo Models | 4B8320
Only 6 leftRegular price From $46.00Sale price From $46.00 Regular priceUnit price per$46.00 -
In StockACL 02-14 WRX / 04-21 STI Race Main Bearing Set Standard Size Position 3 | 5M8297
Only 9 leftRegular price From $27.00Sale price From $27.00 Regular priceUnit price per$0.00 -
In StockACL High Performance Standard Size Main Bearing Set, #5 Thrust Bearing Position WRX 2002-2014 / STI 2004-21 | 5M8309H-STD
Regular price $96.00Sale price $96.00 Regular priceUnit price per$96.00 -
CP Piston Set 99.75mm Bore 10:1 CR WRX 2006-2014 / STI 2004-2019 Subaru Turbo 2.5L Models
Regular price $588.00Sale price $588.00 Regular priceUnit price per$0.00 -
Brian Crower Block Sleeves 99.5mm to 102mm Max Bore Darton Dry Sleeve Subaru EJ25
Regular price $470.12Sale price $470.12 Regular priceUnit price per$0.00 -
In StockBrian Crower Stage 3 Camshafts Subaru STI 2008-2019
Only 4 leftRegular price $965.00Sale price $965.00 Regular priceUnit price per$965.00 -
In StockBrian Crower Adjustable Cam Gears WRX/STI EJ205/EJ257 2002-2019
Only 3 leftRegular price $844.00Sale price $844.00 Regular priceUnit price per$844.00 -
Brian Crower I Beam Connecting Rods WRX/STI Subaru Turbo Models 2002-2019
Regular price $1,045.80Sale price $1,045.80 Regular priceUnit price per$1,045.80 -
Brian Crower Connecting Rods Subaru EJ205/EJ257 I-Beam Extreme w/ARP Custom Age 625+
Regular price $1,302.00Sale price $1,302.00 Regular priceUnit price per$1,302.00 -
In StockBrian Crower Connecting Rods BC625+ w/ARP Custom Age 625+ Fasteners WRX/STI EJ205-EJ257 2002-2019
Only 4 leftRegular price $980.70Sale price $980.70 Regular priceUnit price per$980.70 -
Brian Crower bROD Connecting Rods WRX 2002-2014 / STI 2004-2019 Most Subaru EJ Motors
Regular price $657.30Sale price $657.30 Regular priceUnit price per$657.30 -
In StockBrian Crower 6mm Intake Valve Guides WRX 2002-2014 / STI 2004-2019 Subaru Turbo Models
Only 2 leftRegular price $81.00Sale price $81.00 Regular priceUnit price per$81.00 -
Up to $7.99 off
In StockTorque Solution 02-14 WRX / 04-21 STI / 05-12 LGT / 04-13 FXT Billet Timing Belt Guide | TS-SU-010
Only 5 leftRegular price $52.00Sale price $52.00 Regular priceUnit price per$59.99 -
Up to $4.43 off
In StockTorque Solution 02-14 WRX / 04-21 STI / 05-12 LGT / 04-13 FXT Thermal TGV to Engine Gasket Pair | TS-IMG-030-1
Only 2 leftRegular price $40.00Sale price $40.00 Regular priceUnit price per$44.43 -
GrimmSpeed 38mm 2-Bolt External Wastegate Gasket - Universal | 021001
Regular price $13.00Sale price $13.00 Regular priceUnit price per$13.00
![ACL [02-14 WRX, 04-21 STI] Rod Bearings | 4B8296](http://jdmuscleusa.com/cdn/shop/products/acl-rod-bearing-set-52mm-journal-bearing-wrx-2002-2014-sti-2004-2020-subaru-turbo-models-4b8296-main-bearings-acl-duraglide-75mm-oversize-acl4b8296a-75.jpg?v=1614523038&width=220)
