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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Up to $95.31 offGarrett GT3076R Ball Bearing Turbocharger w/ T3 Undivided Inlet and 3inch 4 Bolt GT Outlet - Universal
Regular price $1,429.69Sale price $1,429.69 Regular priceUnit price per$1,525.00 -
Up to $106.76 offGarrett GTX3076R Super Core CHRA Turbocharger 8mm C/R - Universal
Regular price $1,601.48Sale price $1,601.48 Regular priceUnit price per$1,708.24 -
Up to $130.49 offGarrett GTX3576R Super Core CHRA Turbocharger 8mm C/R - Universal
Regular price $1,957.36Sale price $1,957.36 Regular priceUnit price per$2,087.85 -
Up to $82.50 offGarrett GTW3884R Super Core CHRA Turbocharger - Universal
Regular price $1,237.50Sale price $1,237.50 Regular priceUnit price per$1,320.00 -
Up to $203.50 offGarrett GTX4508R Super Core CHRA Turbocharger - Universal
Regular price $3,052.51Sale price $3,052.51 Regular priceUnit price per$3,256.01 -
Up to $46.11 offGarrett GTW3476 Super Core CHRA Turbocharger - Universal
Regular price $691.72Sale price $691.72 Regular priceUnit price per$737.83 -
Up to $160.34 offCP Piston & Ring Bore 99.5mm 8:2 CR WRX/STI Subaru Turbo EJ255 / EJ257 Models 2004-2019
Regular price $888.66Sale price $888.66 Regular priceUnit price per$1,049.00 -
Up to $160.34 offCP Forged 99.75mm Bore / 9.0:1 Comp Pistons & Rings WRX/STI Subaru Turbo Models EJ255 / EJ257 2004-2019
Regular price $888.66Sale price $888.66 Regular priceUnit price per$1,049.00 -
In StockCP Pistons & Rings Bore 100.5mm Size +1.0mm CR 8.2 WRX/STI Subaru EJ257 Turbo Models 2004-21
Only 2 leftRegular price $885.15Sale price $885.15 Regular priceUnit price per$885.15 -
CP Piston & Ring Set Bore 100mm Size +0.5mm CR 10:1 WRX/STI Subaru EJ25 Turbo Models 2004-2019
Regular price $679.00Sale price $679.00 Regular priceUnit price per$0.00 -
CP Piston & Rings 100mm Bore 9.0:1 CR WRX/STI Subaru Turbo EJ2.5L Models 2004-2019
Regular price $679.00Sale price $679.00 Regular priceUnit price per$0.00 -
In StockBrian Crower Titanium Retainer Kit WRX 2002-2014 / STI 2004-2019 Subaru Turbo Models
Only 4 leftRegular price $204.00Sale price $204.00 Regular priceUnit price per$204.00 -
BorgWarner EFR-7064 Turbo Charger 0.92A/R WG T4 Twin Scroll - Universal
Regular price $2,262.13Sale price $2,262.13 Regular priceUnit price per$0.00 -
Up to $22 off
In StockBLOX Black Racing Manual Boost Controller - Universal
Only 10 leftRegular price $88.00Sale price $88.00 Regular priceUnit price per$110.00 -
Up to $20 offBLOX Gold Racing Manual Boost Controller - Universal
Regular price $80.00Sale price $80.00 Regular priceUnit price per$100.00 -
Up to $21 offBLOX Polished Racing Manual Boost Controller - Universal
Regular price $84.00Sale price $84.00 Regular priceUnit price per$105.00
