2004 Subaru WRX STI WRX STI Upgrades by WRX STI Experts.
2004 was an exciting year for Subaru as they finally released a Subaru WRX STI for US markets. Quickly gaining notoriety in the mid 90’s to early 2000’s, the Subaru STI brought more attention to World Rally Racing. For those of us older folk when digital cable was evolving, we could watch WRC races on SpeedVision while reading about the success of the WRX in magazines such as Sport compact Car and Turbo Magazine. Following the major success of the equally established Mitsubishi Evolution in 2003, Subaru made the right move by debuting the STI shortly after.
With a unique blue interior with Alcantara seats, the 2004 STI had an amazing drivers seating position, a 2.5-liter flagship EJ25 that made nearly 300 HP, and it was mated to a very strong 6-speed gearbox. Subaru’s all-wheel-drive technology quickly gave the STI the upper-hand in competition for weekend autocrosses and track days. COBB Tuning was very busy at the time developing their highly esteemed Accessport to smooth out other popular modifications such as the GrimmSpeed Intake, Tomei Expreme Ti Cat-Back Exhaust, and GrimmSpeed Boost Control Solenoid. But it was quickly discovered that the STI really benefited from a set of Whiteline 24mm Front and Rear Sway Bar Kit. 20 years after the release of the 2004 STI, it remains as one of the best rally-inspired all-wheel-drive turbocharged sedans that continues to dominate the used car market.
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1 In Stock
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Boomba Racing White Delrin Weighted Shift Knob - 2015-2021 Subaru WRX / STI / 2004-2014 Impreza / 2013-2016 Scion FR-S / 2013-2020 Subaru BRZ / 2017-2019 Toyota 86
GrimmSpeed 4-Piston Brake Caliper Kit (326mm Rotor) - Gunmetal Gray - 2002-2021 Subaru WRX / STI
1 In Stock
1880NUR355100Z72
TSW Nurburgring Matte Bronze 18x8 +35 5x100 (Single Wheel) - 2013-2024 Subaru BRZ / Scion FR-S / Toyota GR86 / 2014-2018 Subaru Forester
4 In Stock
T2R-S05
ACT Mod-Twin 225 XT Sprung Race Clutch Kit - 2004-2021 Subaru STI
CPS
Killer B M20 Oil Plug Copper Seal - 2002-2014 Subaru WRX / 2004-2021 STI / 2006-2013 Forester XT
070-EJWT
Killer B Motorsport Oil Pickup And Baffle Combo - 2002-2014 Subaru WRX / 2004-2021 STI / 2004-2008 Forester XT
48 In Stock
027001
GrimmSpeed Exhaust Manifold to Up Pipe Gasket (2x thick) - 2015-2021 Subaru STI / 2004-2013 Forester / 2002-2014 Impreza
2 In Stock
821660
COBB Subaru EJ Turbo Blanket Black Lava - 2015-2021 Subaru STI
20-0305-04
Radium Injector Seats 26mm - 2004-2006 Subaru STI
OEMNPT
Killer B M20 (OEM) To 1/8NPT Oil Temperature Sensor Adapter - 2002-2014 Subaru WRX / 2004-2021 STI / 2006-2013 Forester XT
IAG-ENG-5111BK
IAG Performance V2 Competition Series EJ Timing Belt Tensioner - 2015-2021 Subaru STI
XKSU23531-2B
Xclutch 9in Twin Sprung Ceramic Clutch Kit - 2015-2021 Subaru STI
7 In Stock
TS-0203-1215
Turbosmart Recirculating Blow Off Valve Kompact Plumb Back Black - 2002-2007 Subaru WRX / 2004-2014 Subaru STI / 2006-2008 Subaru Forester XT
62 In Stock
WGIX38DG2
Rays Gram Lights 57DR Gun Blue 18x9.5 +38 5x100 (Single Wheel) - 2013-2024 Subaru BRZ / Scion FR-S / Toyota GR86 / 2014-2018 Subaru Forester
BKR7EIX-GRP
NGK Iridium Spark Plugs One Step Colder 2667 - 2002-2005 Subaru WRX
6 In Stock
VS50465
Mahle Valve Cover Full Set - Subaru Models (inc. 2004-2014 Subaru STI / 2006-2014 WRX / 2004-2013 Forester)
9 In Stock
T2S-S05
ACT Mod-Twin 225 XT Sprung Street Clutch Kit - 2004-2021 Subaru STI
46 In Stock
1.10309.1
FactionFab V2 Front Brake Pads - 2003-2005 Subaru WRX / 2008-2010 WRX
50 In Stock
028001
GrimmSpeed Turbo to Downpipe Gasket - 2015-2021 Subaru STI / 2004-2013 Forester / 2002-2014 Impreza
TB6010-SB02B
Tomei Expreme Equal Length Exhaust Manifold - 2004-2021 Subaru STI / 2002-2014 WRX
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