FB20/FB25 Autocross Prep

Street Category

Only the Impreza and Legacy can be run in Street. The Crosstrek, Forester, and Outback cannot run in Street due to the rollover risk.

H Street (HS)

• Impreza 2.0i (2012–2016)

• Impreza 2.0i (2017–2023)

• Impreza (including RS) (2024–2026)

• Legacy (2013–2014)

• Legacy (2015–2019)

• Legacy (2020–2025)

Recommended Mods

• Wheels

  • The width must remain the same as the factory wheels. The diameter can be upsized or downsized by 1 inch. Offset can be increased or decreased by 7 mm.

• Tires

Optional Mods

• Shocks/Struts

• One Sway Bar

• Brake Pads

• Brake Fluid

• Air Filter

• Catback or Axleback Exhaust

Street Touring Category

E Street Touring (EST)

• Crosstrek (2013–2026)*

• Forester (non-turbo) (2011–2025)*

• Impreza 2.0i (2012–2016)

• Legacy (2.5L non-turbo) (2013–2025)*

• Outback (2.5L non-turbo) (2013–2026)*

G Street Touring (GST)

• Impreza (2017–2026)

*Legal at local events under the “catch-all” rule only. Not legal for National Solo events.

Recommended Mods

• Coilover Suspension

  • For Crosstrek, Forester, and Outback only: In order to comply with the rollover guidelines in the rulebook, this is a required modification.

• Rear Lower Control Arms

• Wheels

  • The maximum width allowance for EST is 7.5 inches, while GST is 9.0 inches. There is no restriction on diameter.

• Tires

  • The maximum tire width allowance for all cars in EST is 225 mm, while AWD cars in GST are allowed up to 245 mm.

• CVT Cooler (for CVT-equipped models)

• Engine Oil Cooler

Optional Mods

• Brakes

• ECU Tuning

• Throttle Controller

• Short Shifter

• Sway Bars

• Seats (must weigh 25 lbs or more, including the seat rails)

• Roof Rail Delete (2012+ Impreza Hatchback, 2024 Crosstrek 2.0L, and 2026+ Crosstrek 2.5L only±)

• Air Intake

• Full Exhaust (headers, front pipe, mid-pipe, axleback)

± If fully abiding to the Street Category's option package conversion rule, this modification is legal in Street Touring. (e.g., If removing roof rails on a 2016 Impreza 2.0i Sport Premium, the resulting car must be identical to the same-year 2.0i Base or 2.0i Premium trim.)

Illegal Mods

Any modifications listed below are not allowed in the Street Touring category.

• Limited Slip Differential (LSD)

  • All vehicles in EST and AWD vehicles in GST can only use factory standard viscous coupler-type differentials.

• Roof Rail Delete (2013–2023 Crosstrek and 2024–2025 Crosstrek 2.5L only)

Xtreme Street Category

This is essentially the free-for-all category, provided that you are running 200+ treadwear tires. All AWD cars must have a minimum weight of 3180 lbs with the driver seated inside.

Xtreme Street A (XA)

• Crosstrek

• Forester

• Impreza

• Legacy

• Outback

Recommended Mods

• Suspension

• Rear Camber Arms

• Wheels

• Tires

• CVT Cooler (for CVT-equipped models)

Optional Mods

• ECU Tuning

• Forced Induction

• Engine Swaps

• Differentials

• Aero Kits

• Seats

• Rear Wings

• Removal of Any Interior Components Behind the B-Pillar