2021 VA WRX · FA20DIT 2.0L turbo flat-four

The Build

31 installed parts, every SKU listed. If you're building a VA, steal freely.

Tune

Tuner
Drift Office
Calibration
Custom dyno tune
Fuel
92 octane
Dyno ambient
~95°F
277 whpGoal 300

92% of the way there. Numbers pulled on a hot day, so there's probably a little left on the table.

277

whp

315

wtq

Tap the glowing dots

Under the hood

Grimm's engine bay

Drag the handle

Before / After

Grimm now Grimm stock Stock · Apr 13, 2025 Grimm · Aug 8, 2026
⇆

Stock to Grimm

The Evolution

  1. Day one

    Apr 12, 2025

    Day one

    Bone stock. OEM wheels, OEM everything. The before picture.

  2. Winter mode

    Nov 18, 2025

    Winter mode

    Sparco wheels on snow tires to get through the PNW winter.

  3. White wheels

    Mar 27, 2026

    White wheels

    First shots on the white wheels. Everything changes here.

  4. Engine bay: before

    Apr 9, 2026

    Engine bay: before

    Stock black plastic, morning of.

  5. Engine bay: after

    Apr 9, 2026

    Engine bay: after

    Same day. Red shrouds and covers in — the bay finally matches the attitude.

  6. Dropped

    Apr 16, 2026

    Dropped

    TEIN Flex Z coilovers. Gap gone.

  7. New face

    May 6, 2026

    New face

    Gloss black grille with the red X.

  8. Carbon & aero

    Aug 4, 2026

    Carbon & aero

    Oversized carbon scoop and front splitter with red rods.

  9. GRIMM

    Aug 8, 2026

    GRIMM

    Plate’s on. Name’s official.

SS1

Engine, Intake & Tuning

7
  • COBB Accessport V3 AP3-SUB-004
  • GrimmSpeed Red Stealthbox Intake GRM060067
  • GrimmSpeed Silver Top Mount Intercooler Kit GRM090070
  • GrimmSpeed Red Charge Pipe Kit GRM090250
  • GrimmSpeed Black V2 Bypass Valve GRM126033BLK
  • GrimmSpeed 3-Port Electronic Boost Control Solenoid GRM057041
  • IAG Street Series Red Air/Oil Separator IAG-ENG-7187RD
SS2

Exhaust

3
  • GrimmSpeed Equal Length Headers GRM113008
  • Invidia Catted Downpipe / J-Pipe (2 bungs) HS15SWMDOC
  • GrimmSpeed Gentleman’s Exhaust V2 Non-Resonated Cat-Back GRM.1025.1.0
SS3

Cooling & Engine Bay

8
  • GrimmSpeed Red Radiator Hose Kit GRM405328
  • Perrin Red Radiator Shroud (OEM intake scoop version) PSP-ENG-512-4RD
  • Perrin Red Intercooler Shroud / Engine Cover Kit PSP-ENG-165RD
  • GrimmSpeed Red Lightweight Battery Mount Kit GRM121034
  • GrimmSpeed High Lift Hood Struts GRM113072
  • GrimmSpeed Red Fender Shrouds GRM096048
  • Billetworkz Red Engine Bay Cap Set w/ fluid engravings (oil, brake, coolant, washer) —
  • Billetworkz Red Billet Dipstick Handle —
SS4

Suspension, Wheels & Tires

4
  • TEIN Flex Z Coilovers VSSB2-C1SA4-C
  • GrimmSpeed Red Front Strut Tower Bar GRM1.1029.1.RED
  • fifteen52 Holeshot RSR Wheels White · 18×9.5 · +38
  • Continental ExtremeContact SportPlus Exact tire model still being verified 225/40R18
SS5

Exterior & Lighting

9
  • OLM Oversized Carbon Fiber Hood Scoop OLMA.70142.1
  • MSP RD2 Style Carbon Fiber Trunk Spoiler M.30133.10
  • OLM A1 Style Carbon Fiber Rear Diffuser OLMA.70177.1
  • MSP Gloss Black Front Grille M.30111.4
  • MSP Red Front Brace Bar M.30102.1-RD
  • MSP Gloss Black WRX Fender Badges M.30306.2-RD
  • MSP Underglow Kit M.30334.1
  • MSP F1 Style Rear Brake Light (red bar / clear lens) M.30303.1-CBRC
  • Hella Super Tone Horn Kit w/ GrimmSpeed BroTie Bracket & Harness 003399801 + GRM040004 + GRM040026

By the brand

Who's on the car

  • GrimmSpeed 12
  • MSP 6
  • Perrin 2
  • Billetworkz 2
  • OLM 2
  • COBB 1
  • IAG 1
  • Invidia 1
  • TEIN 1
  • fifteen52 1
  • Continental 1
  • Hella 1