Elevate the performance of your 2015-2021 Subaru WRX to exhilarating heights with our premium selection of high-quality engine parts. Unleash the full potential of your vehicle's powerplant by exploring our meticulously curated range of performance-enhancing components, designed to optimize every aspect of your driving experience. From turbochargers that deliver impressive horsepower gains to precision-engineered air intake systems that enhance airflow and responsiveness, our collection offers a comprehensive array of aftermarket upgrades to suit your specific performance goals. Our step-by-step installation tips ensure a seamless integration process, whether you're a seasoned auto enthusiast or a first-time DIYer, while our maintenance insights empower you to keep your upgraded engine running smoothly for years to come. Transform your Subaru WRX into a true powerhouse on the road with our premium engine parts, carefully selected to deliver unparalleled performance, efficiency, and driving satisfaction. Unlock the true potential of your WRX today and experience a driving experience like no other.
2015-2021 Subaru WRX Engine Parts
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IAG 15-21 WRX 600 Street Cylinder Heads Package | IAG-ENG-H600L ( INCLUDES Kelford EZ Cams, Cam Towers, Lifters & Rockers
Regular price $5,999.99Sale price $5,999.99 Regular priceUnit price per$5,999.99 -
IAG 750 EJ25 Closed Deck Case - 11mm H.S.M.
Fits: WRX, STI, FXT & LGT
Regular price $2,749.99Sale price $2,749.99 Regular priceUnit price per$2,749.99 -
IAG 750 EJ25 Closed Deck Case - 11mm H.S.M.
Fits: WRX, STI, FXT & LGT
Regular price $2,999.99Sale price $2,999.99 Regular priceUnit price per$2,999.99 -
IAG 950 EJ25 Closed Deck Case - 14mm H.S.M., Fire-Lock
Fits: WRX, STI, LGT, FXT
Regular price $3,099.99Sale price $3,099.99 Regular priceUnit price per$3,099.99 -
IAG WRX, STI, LGT, FXT 950 EJ25 Closed Deck Case - 14mm H.S.M., Fire-Lock | IAG-ENG-C950BH
Regular price $3,499.99Sale price $3,499.99 Regular priceUnit price per$3,499.99 -
IAG 1150 EJ25 Closed Deck Case - 14mm H.S.M., Fire-Lock, Pinned + Line Honed, ARP Case Bolts
Fits: WRX, STI, LGT, FXT
Regular price $4,449.99Sale price $4,449.99 Regular priceUnit price per$4,449.99 -
IAG 1150 EJ25 Closed Deck Case - 14mm H.S.M., Fire-Lock, Pinned + Line Honed, ARP Case Bolts
Fits: WRX, STI, LGT, FXT
Regular price $4,799.99Sale price $4,799.99 Regular priceUnit price per$4,799.99 -
IAG 750 EJ20 Closed Deck Case - 11mm H.S.M.
Fits: WRX, STI, FXT & LGT
Regular price $2,699.99Sale price $2,699.99 Regular priceUnit price per$2,699.99 -
IAG 750 EJ20 Closed Deck Case - 11mm H.S.M.
Fits: WRX, STI, FXT & LGT
Regular price $2,999.99Sale price $2,999.99 Regular priceUnit price per$2,999.99 -
IAG 950 EJ20 Closed Deck Case - 14mm H.S.M., Fire-Lock
Fits: WRX, STI, LGT, FXT
Regular price $3,799.99Sale price $3,799.99 Regular priceUnit price per$3,799.99 -
IAG WRX, STI, LGT, FXT 950 EJ20 Closed Deck Case - 14mm H.S.M., Fire-Lock | IAG-ENG-C955
Regular price $3,499.99Sale price $3,499.99 Regular priceUnit price per$3,499.99 -
IAG 800 FA20 DIT Closed Deck Case Half Set
Fits: 15-21 WRX
Regular price $3,399.99Sale price $3,399.99 Regular priceUnit price per$3,399.99 -
IAG 800 FA20 DIT Closed Deck Long Block Engine w/ IAG 800 Heads
Fits: 15-21 WRX
Regular price $18,999.99Sale price $18,999.99 Regular priceUnit price per$18,999.99 -
Up to $129 off
In StockRevel 11-21 WRX/STi / 08-14 WRX Ultra Ti Single Exit Catback Exhaust | T60188R
Regular price $1,161.00Sale price $1,161.00 Regular priceUnit price per$1,290.00 -
HKS 14 - 21 WRX Super Hybrid Panel Air Filter | 70017-AF101
Regular price $50.00Sale price $50.00 Regular priceUnit price per$50.00 -
![MBRP [15 - 21 WRX/STI] 3inch Cat Back Dual Split Rear Exit T304 Street version | S4800304 - JDMuscleCat Back Exhaust SystemMBRS4800304](//jdmuscleusa.com/cdn/shop/products/mbrp-15-21-wrxsti-3inch-cat-back-dual-split-rear-exit-t304-street-version-s4800304-6305302.jpg?v=1770329139&width=220)
![MBRP [15 - 21 WRX/STI] 3inch Cat Back Dual Split Rear Exit T304 Street version | S4800304 - JDMuscleCat Back Exhaust SystemMBRS4800304](//jdmuscleusa.com/cdn/shop/products/mbrp-15-21-wrxsti-3inch-cat-back-dual-split-rear-exit-t304-street-version-s4800304-2820079.jpg?v=1770329139&width=220)
Up to $368.05 offMBRP 3inch Cat Back Dual Split Rear Exit T304 Street version | S4800304
Fits: 15-21 WRX/STI
Regular price $929.00Sale price $929.00 Regular priceUnit price per$1,297.05
![MBRP [15 - 21 WRX/STI] 3inch Cat Back Dual Split Rear Exit T304 Street version | S4800304 - JDMuscleCat Back Exhaust SystemMBRS4800304](http://jdmuscleusa.com/cdn/shop/products/mbrp-15-21-wrxsti-3inch-cat-back-dual-split-rear-exit-t304-street-version-s4800304-6305302.jpg?v=1770329139&width=220)
![MBRP [15 - 21 WRX/STI] 3inch Cat Back Dual Split Rear Exit T304 Street version | S4800304 - JDMuscleCat Back Exhaust SystemMBRS4800304](http://jdmuscleusa.com/cdn/shop/products/mbrp-15-21-wrxsti-3inch-cat-back-dual-split-rear-exit-t304-street-version-s4800304-2820079.jpg?v=1770329139&width=220)