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GR-Exhaust

Discuss different topics related to the STI's exhaust system.
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GR-Tires & Wheels

Research STI Tires & STI Wheels Discuss wheels, tires, locks, & lugs, etc...
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GR-Suspension, Handling, Stiffening

Research STI Suspension Wheels, & Tires Discuss things related to springs, struts, coilovers, end links, lateral links, unsprung weight, chassis stiffening, etc... Sponsored by: Tire Rack
38.1K 10.2M
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GR-Braking

Discuss things related to rotors, pads, lines, big brake kits, brake fluid, etc...
7.3K 2.4M
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GR-Engine, Power, & Performance

Discuss the power and performance related to the 2.5L Factory Motor

GR-ECU Tuning & Performance Electronics

Discuss things like ECU related electronics and data monitors, etc..

GR-Exterior

Discuss things related to car care & detailing, body kits, lips, spoilers, headlights, tail lights, etc...
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GR-Interior

Discuss harnesses, seats, steering wheels, carpet, mats, etc...BUT NO Performance Electronics, Audio or Security.
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GR-ICE/Security

Discuss things related to audio, video, nav, security, etc...
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Sticky OEM Parts Sourcing
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Sticky Subaru STI How-To Installation Catalog for the GR Chassis
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Sticky Technical Threads of Interest
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Mystery exhaust smell - running out of place to look
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What Did You Do to Your GR STI Today?
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trunk space
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DSS Carbon Fiber Driveshaft
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Automatic Sti's and Modding
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custom oil cooler bracket installed
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Who's had NO problems with their STI?
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HELP, street flooded out and stopped my STI :(
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Oil Leak
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need help
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[Swap] Any EJ20x in a 08+ STI out there?
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Rotella T6 5W30/5W40 info from Shell
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This is what they call *auto* climate control?!
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Delta Motor Works (DMW) solid shifter bushings
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Can someone help me do my timing belt? I’ll pay you.
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Radium Surge Tank Install / Fuel System
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Shifter pivot bushings
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GR - Transmission Issue 4th Gear
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Weird sound coming when steering low speed
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Boost gauge tee fitting
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Rank Them: Top 5 WORST installs
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Odd Vibration?
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Engine boggling when in 4th and 5th gear
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is anyone getting this harmonic "hoo" sound in their GR's?
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JDM parts that would fit 2010GRB Sti U.S spec
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Mods that you regret
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Help -- STI Tranny Drain
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400whp 50-State legal turbo kit!!???
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23
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Maddad Whisper V3 <-- Are they still available?
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Whining from engine bay
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Over heating problem
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 by Leemanfor
Transmission Fluid Flush factory overtorqued nut?
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 by crick0234
Dang it...I have clutch click..Verified Bad welds..Now what?
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2013 ECU Pinout
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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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