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Stage 2
GDB

GDB STI Stage 2 Big Turbo Build

Blouch turbo upgrade with FMIC and full supporting mods for 400+ whp.

Subaru WRX STI380–430 hp target~24h total install9 parts
Build Steps

Parts List & Install Order

Required Parts · 6
  1. 1
    Advanced8h install+40–90 hp4.7

    Turbo

    $1,799.00

    from 2 suppliers

    Buy
  2. 2

    $1,299.00

    from 2 suppliers

    Buy
  3. 3
    Intermediate2h install04.8

    Injectors

    $699.00

    from 2 suppliers

    Buy
  4. 4
    Moderate1.5h install04.5

    Fuel pump

    $73.66

    from 9 suppliers

    Buy
  5. 5
    Easy0.5h install+10–30 hp4.8

    Tune

    $721.07

    from 2 suppliers

    Buy
  6. 6
    Advanced6h install04.4

    Clutch

    $595.06

    from 2 suppliers

    Buy
Optional Upgrades · 3
  1. 96
    4.9

    Set of 4 lightweight forged wheels

    $1,380.00

    from 2 suppliers

    Buy
  2. 98
    4.6

    Keeps intake clean on turbo builds

    $112.75

    from 34 suppliers

    Buy
  3. 99
    4.8

    Essential for tuning; mount in A-pillar pod

    $199.99

    from 2 suppliers

    Buy
Cost Summary
Required parts (6)$5,186.79
Optional upgrades (3)+$1,692.74
Total (best prices)$6,879.53
Prices from lowest available supplier. Does not include shipping or labor.