2008-2014 Subaru STI

This kit is designed to be the best AOS on the market. It is a triple pass system with carefully designed diameters and cross sect...

Say goodbye to anxiety-port! The IBR Universal AccessPort Glove Box Mount will make your driving experience better in no time. This accessport moun...

Turn your single OBD2 port into Two Can allow multiple devices to access ECU at the same time* Thin, flat harness allows for easy routing and flex...

Looking for a simple way to read ethanol content DIRECTLY from your ethanol sensor? Your search stops HERE! Introducing the P3 ESVA P3 Gauges has...

60" of 5/32" O.D. plastic tubing, "T" fitting, connector hoses (5/32" I.D.) and zip ties. Does NOT include boost tap.Can be used as a Plug and play...

*Does not include tubing or boost tap - Analog, V2, and V3 gauges only - Design may vary but function/application is the same Optional external 8...

*ONLY COMPATIBLE WITH V3 OBD2 GAUGEThe P3 V3 Hardwire Harness will allow you to connect your V3 gauge to your car without blocking access to your O...

The 1-piece driveshaft for the Subaru WRX Sti is a complete 2.75″ Carbon Fiber shaft that is approximately 1/2 the weight of the factory 2-piece dr...

IAG 550 EJ25 2.5L SUBARU SHORT BLOCK DESIGNED FOR STRENGTH The IAG 550 Short Block is designed for modified EJ25 Subarus that n...

LED technology usually has less current draw than the halogen bulbs they replace. This causes the turn signals to "hyperblink" or blink really fast...

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

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 ...

The IAG Unequal Length Headers are the perfect way to add more performance to your Subaru WRX STI and still keep the iconic "Boxer Rumble." The hea...

GET THE PACKAGE DEAL The IAG V2 Oil Pickup, Street Series Baffle, Windage Tray, along with our New Oil Pan is now available as a complete package. ...

COMPLETE COMPETITION SERIES PACKAGE IAG now offers our V2 Oil Pickup, Competition Series Baffle and Windage Tray combined with our Competiti...

EVERYTHING YOU NEED, IN ONE EASY PACKAGE IAG now offers our V2 Oil Pickup, Street Series Baffle and Windage Tray combined with our Street Series Oi...

COMPLETE COMPETITION SERIES PACKAGE IAG now offers our V2 Oil Pickup, Competition Series Baffle and Windage Tray combined with our Competition Oil ...

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

Here, you are looking at the Injector Dynamics Fuel Injector PnP Adapter USCAR to Denso Adapter. This is available for separate purchase for those ...

The Original Direct-Fit BCS for turbo Subarus. GrimmSpeed is proud to provide the most complete and easy to use 3-Port Electronic Boost Solenoid fo...

DESCRIPTION We all know how bad (and expensive!) the OEM Subaru Top Mount Intercooler Gaskets can be. They are one of the greatest source of leaks ...

DESCRIPTION We know that many of you replace all of your exhaust gasket at the same time while installing aftermarket exhaust parts on your car. We...

DESCRIPTION These are the GrimmSpeed TGV to Engine Gaskets. If you need to replace your OEM gaskets, then the GrimmSpeed units make for a quality r...

A perfect solution to pesky problems - it's what you expect from GrimmSpeed! Exhaust leaks seem to be an all-too-common issue with most modded Suba...

Please note: This item is currently made-to-order.  LowerClass Garage Front Chassis Brace Looking to increase the aggression of your front end? The...

AG PTFE FUEL SYSTEM KIT W/ AEROMOTIVE FPR, IAG FUEL RAILS FOR 08-14 WRX, 08-21 STI FUEL DELIVERY MADE EASY When designing the IA...

IAG PTFE FLEX FUEL SYSTEM KIT W/ AEROMOTIVE FPR, IAG FUEL RAILS FOR 08-14 WRX, 08-21 STI FUEL DELIVERY MADE EASY When designing ...