2015-2021 WRX & STI Mods

TRANSFORM YOUR ENGINE BAY Get rid of the unattractive OEM yellow cap and upgrade your engine bay with the IAG Revolve Coolant Reservoir Cap. ...

THE IAG PERFORMANCE EQUAL LENGTH HEADER The IAG Performance Equal Length Header is the perfect upgrade to boost the performance and power in ...

NO MORE DRIVETRAIN SLOP The IAG Race Series Pitch Stop Mount offers a solid solution for reducing engine and transmission movement under hard...

NO MORE DRIVETRAIN SLOP The IAG Competition Series Pitch Stop Mount offers a solid solution for reducing engine and transmission movement und...

HIGHER CAPACITY The IAG Performance EJ Street Series Oil Pan for the Subaru WRX, STI, LGT and FXT features a unique design and is precisi...

IAG 1150 LONG BLOCK ENGINE WITH IAG 1150 HEADS FOR 02-14 WRX, 04-21 STI, 04-13 FXT, 05-09 LGT A "DROP-IN" SOLUTION The IAG Perf...

IAG 1150 2.35L DESTROKED LONG BLOCK ENGINE W/ IAG 1150 HEADS DROP IN AND DRIVE The IAG Performance hand-built Subaru 11...

IAG 950 2.35L DESTROKED LONG BLOCK ENGINE W/ IAG 950 HEADS DROP IN AND DRIVE The IAG Performance han...

The IAG Competition Series Oil Pan for the Subaru WRX and STI is uniquely designed and CNC machined to suit a wide range of street and track applic...

The IAG Competition Series Oil Pan for the Subaru WRX and STI is uniquely designed and CNC machined to suit a wide range of street and track applic...

The IAG Street Series Oil Pan for the Subaru WRX and STI is uniquely designed and CNC machined to suit a wide range of street and track application...

The IAG Spec Competition Clutch Triple Disc Clutch & Flywheel Kit is designed and developed for the 2004-21 Subaru STI 6 speed racing applicati...

A "DROP-IN" SOLUTION The IAG Performance Hand-Built 550 Subaru EJ25 Long Block Packages are a complete, valve cover to valve cover...

A "DROP-IN" SOLUTION The IAG Performance Hand-Built Subaru EJ25 Closed Deck Long Block Engine Packages are a complete, valve cover t...

A "DROP-IN" SOLUTION The IAG Performance Hand-Built Subaru EJ25 Closed Deck Long Block Engine Packages are a complete, valve cover t...

The CNC Billet Aluminum EJ case seeks to change the Subaru performance tuning market by reinventing the EJ and addressing virtually every weakness ...