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General

Site Automotive News

News related to the Subaru Impreza WRX/STI and other Automotive coverage.
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Ride of the Month

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Frequently Answered WRX Questions

A list of the most popular questions asked and links to threads with answers. Every newbie should start here before posting questions. This is a READ ONLY forum.
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749K
208
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How-To Article Library

Installs, Parts Reviews, How-To's, etc. Document your turbo install, review your FMIC, explain how to read flow maps, etc. No questions or discussions
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357
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WRX Tech Forums

Builds

Share your builds!
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246
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Newbie Forum

Beginner/basic WRX tech-related discussions and general WRX questions. Specific questions should be asked in a focused forum below. This forum is for the newbies.
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28.4M
85.2K
28.4M

Bolt-on Tech(EJ255/EJ257 2.5L 08+ WRX, STi, & GT)

Intake, exhaust, turbos, intercoolers, fuel system, intake manifold, ignition, cooling, etc. For 2008+ STi, WRX, and GT.
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5.8M
9.8K
5.8M

Bolt-on Tech (EJ225/257 2.5L 04-07 STi 06-07 WRX)

Intake, exhaust, turbos, intercoolers, fuel system, intake manifold, ignition, cooling, etc. For '04-07 STi and '06-07 WRX.
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6M
13.9K
6M

Bolt-On Tech (EJ205 2.0L '02-05 WRX)

Intake, exhaust, turbos, intercoolers, fuel system, intake manifold, ignition, cooling, etc. For 2002-2005 WRX.
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14.7M
41K
14.7M

Tuning & Engine Management

ECU mods, stand alone ECUs, UTec, XEDE, TEC, Autronic, wideband, datalogging, etc.
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6.6M
15.9K
6.6M

Cylinder Head & Short Block

Cams, valvetrain, pistons, rods, stroker kits, swaps, etc. Advanced modification discussions only.
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3.2M

Drivetrain & Tranny

Transmission, shifters, clutches, torque converters, differentials, axles, gears, etc.
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4.9M
9.8K
4.9M

Handling Tech

Suspension, steering, brakes, tires, lightweight wheels, bushings, etc.
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6.3M
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Problem Diagnosis

Need quick help? Troubleshoot the problem here.
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Non-Performance Tech

Interior, exterior, appearance mods, lighting, alarms, car audio, radar detectors, etc.
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Wheels, Tires, Brakes, and Suspension

Post your wheel, tire, brake, and suspension topics and questions here. Sponsored by Discount Tire
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WRX Racing Forums

Road Course/Autocross Tech

Autocross, Road Race, and Open Track Event discussions. Preparation, technique, tips, and stories from the events. Tell us about your last event.
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644K
1.4K
644K

Drag Strip Tech

For sanctioned, legal Drag Racing. Preparation, technique, tips, and stories from the events. Tell us about your last event. No street racing discussions.
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1M
2.1K
1M

Rallycross/Rally Tech

For all multi-surface racing. Preparation, technique, tips, and stories from the events. Tell us about your last event.
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404
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WRXtuners.com Marketplace

Parts For Sale (WRX-specific)

Parts For Sale (WRX-specific) New and used parts for WRX's - no vendor ads.
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431K
678
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WRX STi - For Sale

WRX STi cars for sale. Complete cars.
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133K
89
133K

WRX Sedans - For Sale

WRX sedans for sale. Complete cars.
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106K
68
106K

WRX Wagons - For Sale

WRX wagons for sale. Complete cars.
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93.5K
61
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Car Audio - For Sale

Car audio and entertainment equipment.
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1
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Wheels/Tires - For Sale

Wheels and tires for sale.
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78.3K
86
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Non-WRX Ads

Anything that doesn't fit in another category.
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10.4K
5
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Want to Buy/Want to Trade

Anything you want to Buy or Trade.
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142K
164
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Vendor Member Section Want to Grow Your Business? Learn more about becoming a Supporting or Premium Vendor

Vendor Deals

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CARiD.com

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Diode Dynamics

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Vendor Announcements

Special sales, group buys, and product announcements from our supporting vendors.
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Latest Posts See all new posts
  1. Hi all Suby folks! I have started to develop a new software to tune, log and flash Subaru ECUs. This project started an idea about year ago, to combine Subaru tuning support to my own standalone engine management system software, called FastECU. Time passed by and finally this summer I got a...
  2. Diode Dynamics is excited to introduce our new SS3 Fog Light Kit for the 2015-2021 Subaru WRX! Our SS3 LED Fog Light Kits are now available for the 2015-2021 Subaru WRX! These bolt-on kits allow you to replace your factory fog lamps with a pair of SS3 LED Pods. Featuring higher output...
  3. Diode Dynamics is excited to introduce our new SS3 Fog Light Kit for the 2015-2017 Subaru WRX STi! Our SS3 LED Fog Light Kits are now available for the 2015-2017 Subaru WRX STi! These bolt-on kits allow you to replace your factory fog lamps with a pair of SS3 LED Pods. Featuring higher output...
  4. Diode Dynamics is excited to introduce our new SS3 Fog Light Kit for the 2011-2014 Subaru WRX/STi! Our SS3 LED Fog Light Kits are now available for the 2011-2014 Subaru WRX/STi! These bolt-on kits allow you to replace your factory fog lamps with a pair of SS3 LED Pods. Featuring higher output...
  5. Diode Dynamics is excited to introduce our Stage Series LED Ditch Light Kit for the 2015-2021 Subaru WRX/STi! The Stage Series LED Ditch Light Kit for the 2015-2021 Subaru WRX/STi allows you to easily mount two SS3 or SSC2 Pods above the hood. These application-specific brackets were...
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