WRX/STI 2008-2014

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...

P3 V3 Gauge Features Plug and Play Install - plugs directly into your OBD2 port (want to keep your OBD2 port open? hard-wire harness kit also ava...

*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...

The beauty of the GrimmSpeed Staged Power Packages is that all of the included components were designed and tested to work well together as a compl...

The long-awaited GrimmSpeed Bypass Valves are here! Our passion for building the most robust, best-performing parts on the market has driven us to ...

The Killer B Motorsport Holy Header VE-Max was developed using state of the art CAD software, simulations, and testing, to determine optimal high p...

The Killer B Motorsport Holy Header VE-Max was developed using state of the art CAD software, simulations, and testing, to determine optimal high p...

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...

IAG offers our V2 Oil Pickup, Street Series Baffle and Windage Tray combined with our New Oil Pan as a complete package.About Street Series EJ Oil ...

IAG offers our V2 Oil Pickup, Competition Series Baffle and Windage Tray combined with our New Oil Pan as a complete package. About Competition...

IAG offers our V2 Oil Pickup, Street Series Baffle and Windage Tray combined with our New Oil Pan coated with a black finish as a complete package....

IAG offers our V2 Oil Pickup, Competition Series Baffle and Windage Tray combined with our New Oil Pan finished in black as a complete package.Abou...

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 Tug Tow Hook is a fully functional, track-ready tow hook. Designed with beautiful form and engineered to function. Available in black ma...

The Tug Tow Hook is a fully functional, track-ready tow hook. Designed with beautiful form and engineered to function. Available in black ma...

The Tug Tow Hook is a fully functional, track-ready tow hook. Designed with beautiful form and engineered to function. Available in black ma...

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...

The PERRIN Top Feed Fuel Rail Kit has been designed to deliver a larger volume of fuel to the injectors of your Subaru WRX or STI. Additionally, th...

This is the PERRIN Performance Downpipe. This downpipe provides an unobstructed flow path to allow the exhaust gases to exit freely out of the turb...

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 in the entir...

Perfect size and weight for the perfect shift, every time. The standard GrimmSpeed Shift Knob is one of the most popular in the Subaru aftermarket ...

GrimmSpeed™ knows that many of you replace all of your exhaust gasket at the same time while installing aftermarket exhaust parts on your car. We'v...

Set of GrimmSpeed TGV to Engine Gaskets. We recommend replacing these any time you pull your TGVs off. These come as a pair, pick up an additional ...

Flared Adapter Transition!(Creates a smooth transition from your 3" downpipe to your OEM midpipe) Flanged for OEM Donut Gasket Indestructible...

LOWERCLASSGARAGE FRONT CHASSIS BRACES ARE DESIGNED TO PREVENT FLEX UNDER HIGH CORNERING LOAD BY ADDING EXTRA CONTACT POINTS BETWEEN THE CORE SUPPOR...

These are Morimoto's new XB LED Headlights. These are direct replacement headlights, but they have been built and designed with the latest in moder...

Reference the chart below to be sure the proper fuel rails are ordered.Manufactured with a large internal bore, the fuel rails can support all nece...

Metal reinforced, crush resistant, high temperature graphite fiber. Fits most Subaru EJ engines. Installs between intake manifold (TGVs) and cylind...

The Radium Engineering fuel line retaining kit supports large aftermarket fuel lines under the 08-21 Subaru Impreza, WRX, and STi.The retainers are...