Subaru STI Engine Parts

DESCRIPTION The Perrin Coolant Overflow Tank for the 2002+ Subaru WRX and 2004–2021 STI is a premium upgrade that replaces the factory plastic tank...

DESCRIPTION The Perrin Coolant Overflow Tank for the 2002+ Subaru WRX and 2004–2021 STI is a premium upgrade that replaces the factory plastic tank...

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...

DESCRIPTION The Perrin TMIC is 12% larger than the nearest competitor's core. The large core means less restriction and better cooling capabilities...

ENHANCE INTERIOR Enhance the look of the interior with perfectly fitted dry carbon overlays. Using various methods of extensive testing for eac...

ENHANCE INTERIOR Enhance the look of the interior with perfectly fitted dry carbon overlays. Using various methods of extensive testing for eac...

ENHANCE INTERIOR Enhance the look of the interior with perfectly fitted dry carbon overlays. Using various methods of extensive testing for eac...

DESCRIPTION Do away with the flimsy, boring factory fabric shrouds and make your engine bay stand out with the brand new GrimmSpeed Fender Shrouds....

Replace the ugly yellow plastic OEM oil fill cap with the sexy billet aluminum PERRIN Oil Fill Cap! Complete Your Engine Bay The Perrin Aluminum O...

GREATER OIL CAPACITY The IAG Performance EJ Competition Series Oil Pan features precision CNC machining and an advanced design for superior perform...

INCREASED CAPACITY The IAG Performance EJ Street Series Oil Pan for the Subaru WRX, STI, LGT and FXT is uniquely designed and CNC machined to suit ...

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 ...

PERRIN Front Mount Intercooler Kits are ideal for those who want to get the most out of their turbocharged Subaru. Add power and a bold new look al...

Increase horsepower and add under-hood style with the PERRIN Cold Air Intake. It features correct MAF alignment and tubing size to maintain proper ...

The PERRIN Turbo Inlet Hose has a smooth interior and larger diameter than the OEM hose, increasing airflow. Removing OEM pleats boosts horsepower,...

On this page, you are looking at the Tomei ARMS MX7760 Single Scroll Turbocharger. This is Tomei's latest design that features a new CNC billet com...