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Subaru Impreza WRX STi GD/GG

Subaru Impreza WRX STi GD/GG 2003 (w/ PS91)

Skyler Skyler verified Added 08-09-2024 Updated 15-07-2026
MOD LEVEL
Heavy info
HORSEPOWER
300
WEIGHT KG
1,470
Power to Weight
0.2
FORCED INDUCTION
YES
CURRENT VALUE
$48,750
MOD NOTES


Suspension:

FA500 (out of box spring rate)
Stock sway bars
STI pillowball rear lateral links
TIC Klunk killer package (TIC Diff bushings, kartboy outrigger bushings)
Kartboy subframe lockdown bolts
STI control arms 
STI control arms rear bushing 
SuperPro rack bushings

———————————————

Drivetrain/Powertrain:

V7 ej207 (Group N mounts)(Iwire AVCS bulkhead kit) (Motul 300v 5w-40)
Rotated gt3076 (12 psi) (315whp) (elh) (44mm Tial ewg)
ARP 2000 Headstuds
Braided oil feed for turbo and AVCS
Radium Dual catch can setup (Block and Heads)
3 port ebcs 
Perrin front mount intercooler 
Tial 50mm BOV
Cat-less down pipe w/ stromung mid pipe and custom axle back w/ cat for class rules
IAG performance oil control baffle, windage tray, v2 pickup (stock sti pan) 
CSF radiator (stock fans)
Oil cooler (big setrab core)
04 sti trans/diff (Rallispec JDM 5/6 w/ IAG Carbon synchros)(Group N mounts including crossmember bushing)
ACT Heavy duty performance Clutch kit w/ monoloc
OEM STI flywheel 
OEM STI short shifter 
Tune (TRB Tuning gate pressure w/ safeties)

Wheel/Tire/Brake setup:

Advan RG-4 18x9.5 +40
Kumho Ecsta PS91 (260tw) 255/35/18 
35 psi hot 
OEM 4/2 pot STI Brembos 
CarboTech XP10 F XP8 R
Castrol SRF
Steel braided lines F/R
Plain rotors 
———————————————

Alignment:

Camber ~ F: -3.5°
                 R: -2.6-7°
Toe ~  F: 0.05° out
           R: 0
Caster ~ 4.5°

ALIGNMENT
Camber ~ F: -3.5°
R: -2.6-7°
Toe ~ F: 0.05° out
R: 0
Caster ~ 4.5°

OEM Specs

ENGINE DESCRIPTION
2.5L turbo flat-4 (EJ25)
MODEL NUMBER
WRX STI
DRIVE TYPE
AWD
WHEELBASE MM
2540
WIDTH MM
1740
LENGTH MM
4465
HEIGHT MM
1440
0 - 60 MPH
5 SECs
TOP SPEED KPH
254
PRICE (MSRP) USD
$33,620
GEARBOX
6-SPEED MANUAL
TORQUE
407 N.M

Brake

MANUFACTURER
Comments

Laps

Other Variations

Model Driver Horsepower Brake pad Value Mod Tire P/W Laps
w/ RS4 Skyler 300 XP8 $28,000 Heavy AZENIS RT660 2
Subaru Impreza WRX STi GD/GG 2003 Skyler 300 $28,000 Heavy AZENIS RT660 1

More laps from Subaru Impreza WRX STi GD/GG

Time Track Car Mod Driver Tire Lap Date Date Added vs Predict Pace
9.7 Jamwest Speedway (Drag Strip) Heavy 11 Jul, 2019 03 Mar, 2026
1:47.4 Lausitzring (GP Oval) Medium 03 Aug, 2020 13 May, 2022
2:06.5 Tor Ułęż Medium 12 May, 2018 19 May, 2026 -30.21s +23.69%
1:43.3 Botniaring (Long) Medium 20 Sep, 2022 10 Dec, 2025 -12.56s +12.06%
1:44.5 Botniaring (Long) Medium 20 Sep, 2021 10 Dec, 2025 -11.34s +10.76%
1:45.8 Botniaring (Long) Medium 20 Sep, 2020 10 Dec, 2025 -9.93s +9.30%
1:47.8 Botniaring (Long) Medium 06 Jul, 2019 10 Dec, 2025 -7.98s +7.34%
1:10.1 Auto Club Speedway (Infield Road Course) Race 20 May, 2014 12 Jul, 2021 -6.79s +9.20%
1:25.7 Qlispe Raceway Park Race 21 Oct, 2022 31 Aug, 2024 -4.1s +4.57%
1:54.6 Botniaring (Long w/ chicane) Medium 12 Jun, 2017 10 Dec, 2025 -3.55s +3.07%
1:37.0 Mid-Ohio Sports Car Course (Main Circuit with Chicane) Medium 02 Aug, 2020 04 Mar, 2026 -3.13s +3.10%
1:50.2 Inde Motorsports Ranch (Configuration 5-CW) Light 10 May, 2019 09 Feb, 2026 -2.72s +2.44%
1:34.3 New Thailand Circuit Nakhonchaisri Medium 12 Jun, 2026 12 Jun, 2026 -2.51s +2.64%
56.5 Tsukuba Circuit Race 12 Jul, 2017 18 Jan, 2026 -1.47s +2.41%
1:39.0 Ruapuna Park (GP) Light 01 Jun, 2008 18 Jan, 2026 -1.43s +1.44%
56.1 Spa Nishiura Motor Park (CW) Race 14 Nov, 2009 14 Nov, 2025 -1.32s +2.26%
1:33.8 KazanRing Canyon Heavy 17 Sep, 2017 14 May, 2026 -1.32s +1.34%
2:07.2 New Adria International Raceway (Full) Medium 13 Jun, 2026 13 Jun, 2026 -1.29s +1.01%
2:30.2 Spring Mountain Motor Resort (Mansell C 3.4 Mile) Race 12 Nov, 2016 15 Jul, 2021 -1.12s +0.71%
2:19.8 Circuit of the Americas - COTA Race 28 Feb, 2022 02 Nov, 2024 -0.86s +0.59%
1:38.1 KazanRing Canyon Medium 15 Jul, 2024 24 Jan, 2026 -0.78s +0.79%
1:30.7 Ruapuna Park (GP) Race 01 Aug, 2018 07 Jan, 2026 -0.75s +0.75%
2:01.9 Watkins Glen International (Full Circuit w/ Loop) Medium 11 Nov, 2023 07 May, 2024 -0.68s +0.53%
1:12.3 Bondurant-Radford Racing School Stock 15 Mar, 2020 06 Nov, 2021 -0.67s +0.92%
1:29.6 Grand Prix of Long Beach Race 04 Oct, 2021 09 Feb, 2026 -0.57s +0.61%
1:57.6 Botniaring (Long w/ chicane) Medium 25 Apr, 2015 10 Dec, 2025 -0.49s +0.42%
43.8 Mihama Circuit Kunimoto Medium 07 Nov, 2022 01 Jun, 2024 -0.41s +0.93%
1:53.2 Buttonwillow Raceway (13CW) Race 18 Nov, 2013 13 Jul, 2021 -0.36s +0.31%
54.6 La Junta Raceway (CW) Heavy 21 Nov, 2023 12 Apr, 2026 -0.33s +0.59%
59.7 Spa Nishiura Motor Park (CW) Light 13 Feb, 2012 15 Nov, 2025 -0.3s +0.51%
59.8 Spa Nishiura Motor Park (CW) Light 04 Jan, 2012 15 Nov, 2025 -0.25s +0.43%
1:21.7 Willow Springs Raceway (Streets Pre 2022) Race 27 Jul, 2014 14 Jan, 2026 -0.18s +0.22%
1:33.4 Road Atlanta Race 16 May, 2014 15 Jul, 2021 -0.1s +0.11%
52.4 Queensland Raceway (Sprint) Race 30 Nov, 2015 24 Jan, 2026 -0.09s +0.17%
1:55.3 Chuckwalla Valley Raceway (CW) Race 06 Apr, 2014 13 Jul, 2021 -0.06s +0.05%
1:10.0 Red Ring-Krasnoyarsk Medium 16 Oct, 2011 23 Jan, 2026 -0.03s +0.05%
1:33.4 New Dominion Raceway Light 27 May, 2026 06 Jun, 2026 +0.1s -0.11%
59.7 Spa Nishiura Motor Park (CW) Light 29 Jan, 2011 15 Nov, 2025 +0.14s -0.24%
59.7 Spa Nishiura Motor Park (CW) Light 17 Feb, 2013 15 Nov, 2025 +0.17s -0.29%
2:02.5 High Plains Raceway (Full) Medium 01 Jan, 2022 07 Feb, 2026 +0.26s -0.21%
1:07.2 Broadford Speedway Medium 15 May, 2022 23 Jan, 2026 +0.27s -0.41%
58.3 Spa Nishiura Motor Park (CW) Race 27 Apr, 2009 14 Nov, 2025 +0.32s -0.53%
1:29.7 Oulton Park (Island) Race 22 Jul, 2017 18 Jan, 2026 +0.32s -0.33%
44.6 Autodrom Pomorze Medium 10 Oct, 2020 27 Jun, 2023 +0.39s -0.88%
1:54.4 Oulton Park (International Circuit) Medium 01 Nov, 2013 20 Jan, 2026 +0.41s -0.36%
1:06.8 Zwartkops Race 08 Jul, 2019 22 Jan, 2026 +0.46s -0.63%
58.5 Spa Nishiura Motor Park (CW) Race 29 Mar, 2009 14 Nov, 2025 +0.49s -0.81%
54.9 Spa Nishiura Motor Park (CW) Race 22 Jan, 2011 14 Nov, 2025 +0.63s -1.04%
1:00.5 Spa Nishiura Motor Park (CW) Light 23 Sep, 2011 15 Nov, 2025 +0.72s -1.19%
1:00.5 Spa Nishiura Motor Park (CW) Light 26 May, 2012 15 Nov, 2025 +0.74s -1.22%
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