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

Brakes

Transmission / Clutch

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

• 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!)

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

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

• Hawk brake pads:

  • 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 

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 

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 

Bushings/Bearings

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

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

• 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 

• 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

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

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

• 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