Subaru maintenance

Here are some videos of useful maintenance procedures for Subaru STis. If you have questions or suggestions, contact us at info@froracing.us

Balljoints

Company23 balljoint removal tool to service your balljoints.
Equivalent product as the Company23 tool is no more available from Amazon: https://amzn.to/4d2xwlA 

Front axles / Axle boots

Rear differential / Rear axles

Wheel bearings / Wheel studs

• Wheel Stud Installer: https://amzn.to/4bFR7pf 

• 2004 STi Ball Joint (MOOG K9513 Front Lower Suspension) :  https://amzn.to/4d1fYpV 

• 2004 STi Subaru Front Wheel Bearing Kit: https://amzn.to/47eY8Mr 

• 2004 STi Rear wheel bearing (28016PA0108): https://amzn.to/47eMGjO 

Suspension

• Dorman 926-046 Lateral Link To Knuckle Bolt: https://amzn.to/4dnQsvc 

  • Part numbers:

  • Bolt: 20540AA001 

  • Nut: 20550AA010 

  • Washer:  900335056 

  • Rear lateral link bushing: 20251AA040

Boost controller

Intake / Air Oil Separator

Body protection

Light bar

Exhaust / Cooling

Here is how we proceeded to remove the EVAP system from our 2004 Subaru STi rally car. It mostly consists of removing the solenoids, vacuum lines and the charcoal canister.We used a Vibrant Performance 2164 crankcase filter for the breather hose (https://amzn.to/3QFstyq).

Hydrophobic sock for air filter: https://amzn.to/4elPQVN 

There is also a good write-up here: https://forums.nasioc.com/forums/showthread.php?t=2538954 

Brakes / ABS

Transmission / Clutch / DCCD

Motor mounts

• 2004 STi Group N motor mounts (LH Mount D1010FE120 x1, RH Mount D1010FE110 x1): https://amzn.to/4bYgi7F 

Tuning

• Kill switch:

  • Cartek GT: https://rally.build/products/cartek-x-club-solid-state-battery-isolator-kit 

  • Toggle switches: https://amzn.to/4cjByDY 

  • Momentary push button: https://amzn.to/41vwlUz 

  • All-in-one panel: https://amzn.to/3Q6qbb9 

  • All-in-one with kill switch: https://amzn.to/4szBnu9 

  • 4-post kill switch: https://amzn.to/4tI6uEU 

Recommended products and part numbers

Brakes: https://amzn.to/4tAQIfb 

• Calipers

  • Front 4-pot brake calipers (direct fit on 04 STi): https://amzn.to/3NlvYbU (buy left and right separately, they are cheaper than the combo!)

  • Rear 2-pot brake calipers (direct fit on 04 STi): https://amzn.to/4tl7DSX  (buy left and right separately, they are cheaper than the combo!)

  • Rear caliper/brake pad spring 26632FA010: https://amzn.to/4vSNaH9 

• Rotors

  • Frozen rotors from Rally.Build (for 4/2 pots on 04 STi): https://rally.build/collections/frozen-rotors 

  • Front rotor for HP+ pads only: Centric Premium 120.47018 https://amzn.to/4vdRKiE 

  • KNS 4650 Front rotors (dual drilled 5x100/5x114): https://bleedingtarmac.com/products/kns-brakes-front-rotor-02-14-subaru-wrx 

  • KNS4656 Rear rotor (dual drilled 5x100/5x114): https://bleedingtarmac.com/products/kns-brakes-dual-drilled-2-pot-rear-gravel-rotor-04-07-subaru-wrx-sti 

• Hawk brake pads: HAWK brake pads at Tire Rack

  • 4 pot front HP+ HB178N.564: https://amzn.to/4sXFSiR 

  • 4 pot front DTC60 HB700G.562: https://amzn.to/3PSlLnV 

  • 2 pot rear HP+  HB179N.630: https://amzn.to/3NwLrWC 

  • Brembo front HP+ HB453N.585: https://amzn.to/4t5UUTX 

  • Brembo rear HP+ HB180N.56: https://amzn.to/4sXFZLj 

• Stainless steel braided brake lines Goodridge 24215: https://amzn.to/4uLMzWX 

• 2004 STi ABS sensor rear passenger: https://amzn.to/4bmDvAk 

Group N mounts

• 2004 STi Group N motor mounts (LH Mount D1010FE120 x1, RH Mount D1010FE110 x1): https://amzn.to/4bYgi7F 

• Subaru Group N Front & Rear Strut Mounts (Front Strut Mount B0310FE000 X 2 + Rear Strut Mount B0310FE013 X2): https://amzn.to/4bNei14 

• Subaru Group N Rear Strut Mount for 2004-2007 WRX/STi - B0310FE013: https://amzn.to/4uKVtUD 

• Group N Motor mounts & transmission mount: https://amzn.to/4vKzQ7l 

• Pitch Stop Mount - D1040FE000: https://amzn.to/4eA67YH 

Suspension

• Budget KYB with King Springs: https://amzn.to/4mNn9EU 

  • KYB 734036: https://amzn.to/3Qp50Bg 

  • KYB 734034: https://amzn.to/4mIns3M 

  • KYB 734035: https://amzn.to/4d0qTzy 

  • KYB 734037: https://amzn.to/4cpYgM2 

  • KYB SM5422 rear top hat: https://amzn.to/4vLPlfm 

  • KYB SM5361 front top hat: https://amzn.to/4sUiFgZ 

  • King Springs: https://get-primitive.com/products/lift-springs-king-springs-2004-2007-impreza 

  • Subaru Group N Front & Rear Strut Mounts (Front Strut Mount B0310FE000 X 2 + Rear Strut Mount B0310FE013 X2): https://amzn.to/4bNei14 

• Intrax Rally suspension at Rally.Build: https://rally.build/collections/intrax-suspension 

• Samsonas at Fercomp: https://fercomp.com/product/samsonas-motorsport-subaru-impreza-sti-n14-suspension/ 

Seats

• Sparco Seat Bracket, Competition, Side Mount, FIA Approved: https://amzn.to/4rLltMS 

• Driver Seat Bracket for MOMO / NRG / Sparco / Recaro / Bride / OMP - Subaru Impreza/WRX/STI (1993-2007) - Part #SB019DR: https://amzn.to/4rK7zL2 

• Passenger Seat Bracket for MOMO / NRG / Sparco / Recaro / Bride / OMP - Subaru Impreza/WRX/STI (1993-2007) - Part # SB019PA: https://amzn.to/4dChLBT 

Tie rod/Ball joints/End links

• 2004 STi outer tie rod end (MOOG ES3712): https://amzn.to/47IA2ty 

• 2004 STi inner tie rod end (MOOG EV800361): https://amzn.to/4vSj5HN 

• 2004 STi Ball Joint (MOOG K9513 Front Lower Suspension) :  https://amzn.to/4d1fYpV 

• Front sway bar end link MOOG K750049: https://amzn.to/4sDISAs 

• Read sway bar end link MOOG K750041: https://amzn.to/48amE1I 

• Sway bar bushings MOOG K200635: https://amzn.to/4cr6GRV 

• Power steering boot ACDelco 45A7084: https://amzn.to/4mAta7F 

Bushings/Bearings

• FRONT Control Arm FRONT Bushing 20204FE010 (2002-2007 WRX/2004-2007 STi): https://amzn.to/4rHzTxD

• Sway bar bushings MOOG K200635: https://amzn.to/4cr6GRV 

• 2004 STi Subaru Front Wheel Bearing Kit: https://amzn.to/47eY8Mr 

• 2004 STi Rear wheel bearing (28016PA0108): https://amzn.to/47eMGjO 

• 2004 STi Subaru 34170FE050 Steering Column U-Joint Coupling: https://amzn.to/4sZ8JDq 

• Dorman 926-046 Lateral Link To Knuckle Bolt: https://amzn.to/4dnQsvc 

  • Part numbers:

  • Bolt: 20540AA001 

  • Nut: 20550AA010 

  • Washer:  900335056 

  • Rear lateral link bushing: 20251AA040

Axle boots

• Beck Arnley CV boots:

  • Rear outer 103-2614: https://amzn.to/4es42xZ 

  • Rear inner ?

  • Front inner 103-2942

  • Front outer103-2932: https://amzn.to/4dOyiD3 

Gaskets

• Exhaust Manifold Gasket Pair Turbo WRX STI (OEM 14038AA000): https://amzn.to/47IAnwk  

• Head Gasket 11044AA642 (04-06 STi 05-06 Legacy GT 04-05 Forester XT EJ255 EJ257): https://amzn.to/3PSkZr1 

• Exhaust donut gasket: https://amzn.to/4t499IX 

• Subaru Exhaust Gasket Kit (Exhaust Gasket 14038AA000 X2, DOWN PIPE Gasket 44022AA180 X1, UP PIPE Gasket 44022AA170 X1, TURBO Gasket 44022AA150 X1): https://amzn.to/4t4nQM8 

• Intake Manifold Gasket Set Turbo Impreza WRX STi  14035AA421: https://amzn.to/47guk21 

Misc

• 2004 STi STi Cabin Air Filter with Activated Carbon: https://amzn.to/41lUc94 

• 2004 STi fender liner: https://amzn.to/4d2F2Nk (passenger side)

• 2015-2021 STi Windshield Washer Pump: https://amzn.to/3Pq75MH 

• 2015-2021 STi Cabin Air Filter with Activated Carbon: https://amzn.to/47Zk2TY 

• Lateral Link To Knuckle Bolt (Jesus bolt): https://amzn.to/4t0PQQH 

• Subaru 11109AA131 Oil Pan: https://amzn.to/47L1neC 

• K&N HP-1008 oil filter: https://amzn.to/4d2KxeK

• Power steering pump: https://amzn.to/4o3gkQi 

• IAG Power steering lines: https://amzn.to/4ua1qZM 

• Rally Armor UR mud flaps ($135): https://amzn.to/43cip2F 

• Hydrophobic sock for air filter: https://amzn.to/4elPQVN 

• Vibrant 2164 Crankcase Breather Filter (for gas tank breather): https://amzn.to/3QFstyq

• Kill switch:

  • Cartek GT: https://rally.build/products/cartek-x-club-solid-state-battery-isolator-kit 

  • Toggle switches: https://amzn.to/4cjByDY 

  • Momentary push button: https://amzn.to/41vwlUz 

  • All-in-one panel: https://amzn.to/3Q6qbb9 

  • All-in-one with kill switch: https://amzn.to/4szBnu9 

  • 4-post kill switch: https://amzn.to/4tI6uEU 

Studs / lug nuts / spacers

• ARP 1007716 long Wheel Stud Kit for Subaru: https://amzn.to/4sS0ucc 

• Muteki 32905B SR Series Black 12mm x 1.25mm SR48: https://amzn.to/3PPgKN8 

• Cheaper Lug Nuts M12x1.25 Open End Wheel Nuts,Taper Acorn Seat, Forged: https://amzn.to/4v8FjVm 

• 5mm spacer: https://amzn.to/3O3fntG 

• 10mm spacer: https://amzn.to/3OnYdqH