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General Subaru Discussion

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Subaru News & Rumors

Share the latest Subaru news, gossip, and rumors. Post it here for all to see.
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DIY Mods & Installations

Read and post your how-to installations.
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Pictures & Photography

Ask questions, share photos, or share knowledge about cameras and camera equipment.
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Video Collection

STI related videos. Please post non-sti videos in non-sti video subforum.
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Detailing & Car Care

Discuss your favorite detailing products, find out how to remove nasty waterspots or imperfections in your paint.
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Subaru BRZ STI

This news related to the upcoming Subaru BRZ STI. This will be expanded or merged as necessary in the future.
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Other Members Journals

This is for all member journals dedicated to all other vehicles.
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IWSTI Engine & Drivetrain New Posts in this section

ECU Tuning & Performance Electronics

Discuss things like ECU related electronics and data monitors, etc...
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2.0 Liter Direct Injection Factory Motor

New for the 2015 WRX, this motor is expected to make its way to the STI in the near future but we don't yet have any official word from Subaru on this. Stay tuned!
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2.5 Liter/Litre Factory Motor

Discuss the Subaru 2.5L factory motor. Please post exhaust related discussion in the exhaust forum.
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Built Motor Discussion

Discuss building, modifying, or swapping your engine internals or aftermarket engine upgrades.
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Drivetrain Components

Discuss things related to clutches, gears, differentials, driveshafts, etc...
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Water-Meth Injection/Nitrous & Intercooler Cooling

Discuss water and methanol injection, nitrous, or methods to lower the intercooler's temperature.
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2015+ STI Discussion Forum

STI Prices, Rates, Ordering, Options Discussions

New to the Subaru purchasing world? Come here to talk about different topics related to the release and the purchase of a new Subaru STI.
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2015+ Member Journals

Use this forum to create a thread featuring your subaru from the day you received through each stage of its modification.
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2015+ STI Discussion

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GR Series STi Discussion (2008+) New Posts in this section

GR-Members' Journals

Document your build story after each modification.
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GR-General

Discussion for general 08+ STIs. Please use the technical subforums for specific 08+ STI topics.
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GD Series STi Discussion (2003/4-2007) New Posts in this section

GD-Members' Journals

Share your build story w/photos after each modification.
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GD-General

Reviews/Comparisons/Thoughts Suspension/Handling Engine/Power Videos/Photos Wheels/Tires Exhaust Build Threads Brakes Interior Maintenance Transmission/Drivetrain Exterior Other
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Marketplace

Detailing For Sale Forum

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Review Dealers, Vendors, & Aftermarket Accessories

Share your experiences with STi Dealers, Vendors, and Aftermarket Products & Accessories.
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2015+ Member Classified Ads

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Cars For Sale

STIs For Sale. This forum is for selling cars ONLY.
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Members Parts For Sale Classifieds

Find parts for sale by our members.
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GR-Member Classified Ads

Find items for sale by IWSTI members (not vendors) here.
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GD-Member Classified Ads

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Other Stuff For Sale

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Vendor Member Section

Vendor Announcements & Project Buildups

This is an area where Vendors can post their announcements, information about project cars, or build ups.
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Vendor Deals

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Aristocrat Autosport

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Community Help Section Read the lastest site news or post your site comments, criticisms, or bug report in here.

Community Help

If you run across a bug or problem with the website please come here and share it with us so we can fix it ASAP.
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Suggestions & Feedback

Let us know what you like or dislike. If you have an idea that you think would make IWSTI.com a better place, please share it with us!
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Off Topic Section

Off Topic

Anything not related to the STi or technical content.
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Non-STI Related / Off-Topic Videos

Please post your Non-STI related videos here.
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Regional Forums

USA - SoCal

Post all your SoCal specific STi discussions & sightings here. Sponsored by
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USA - NorCal

Post all your NorCal specific STi discussions & sightings here. Sponsored by
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USA - Midwest

This forum is for those STi fans that reside in: North Dakota, South Dakota, Nebraska, Kansas, Minnesota, Iowa, Missouri, Michigan, Wisconsin, Illinois, Indiana, and Ohio
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USA - Northeast

This forum is for those STi fans that reside in: Pennsylvania, New York, New Jersey, Connecticut, Rhode Island, Massachusetts, New Hampshire, Vermont, and Maine
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USA - Northwest

This forum is for those STi fans that reside in: Idaho, Montana, Oregon, and Washington
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USA - Mountain West

This forum is for STi fans that reside in: Colorado, Wyoming, New Mexico, Utah, Arizona, and Nevada. Presented by Flat4Engineering.Com
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USA - South Atlantic

This forum is for those STi fans who reside in: Florida, Georgia, North Carolina and South Carolina
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USA - Mid Atlantic

This forum is for those STi fans that reside in: Virginia, West Virginia, Maryland, Delaware, and DC
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USA - South

This forum is for those STi fans that reside in: Kentucky, Tennessee, Alabama, Mississippi, Louisiana, Arkansas, Oklahoma
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USA - Texas

This forum is for those STi fans that reside anywhere in Texas.
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USA - Alaska

This forum is for those STi fans that live in Alaska.
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USA - Hawaii

This forum is for STi fans that live in Hawaii
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USA - Puerto Rico

This forum is for STi fans that live in Puerto Rico.
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Canada

This forum is for our friendly STi fans from the north...
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Europe

This forum is for our friendly STi fans from Europe.
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Australia

This forum is for our friendly STi fans from Australia.
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United Kingdom

This forum is for our friendly STi fans from the United Kingdom.
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Asia

This forum is for our friendly STi fans from Asia.
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South America

This forum is for our friendly STi fans from South America.
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Other Regions

This forum is for our friendly STi fans from Other Regions.
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  3. how much do high temps effect boost?

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    Sanctioned Motorsports

  6. From a 2017 to a 2020 STi

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