2008-2014 Subaru STI Aftermarket and Performance Upgrades

2254 products

Clear all

  • In Stock
    Blox Racing [06-17 WRX/STI] License Plate Delete
    BLOX Racing

    License Plate Delete

    Fits: 06-17 WRX/STI

    Only 2 left
    $2800
  • Up to $130 off
    In Stock
    Seibon OEM-Style Carbon Fiber Trunk Lid WRX/STI 2008-2014 Sedan | TL0809SBIMP4D-OE
    Seibon

    OE-Style Carbon Fiber Trunk Lid

    Fits: 08-14 WRX/STI Sedan

    Only 7 left
    $1,17000$1,300.00 Save $130
    Pay over time · Est. $36.56/payment
    ⓘ

    Illustrative estimate only, not a financing quote or guaranteed offer. Actual payments, frequency and terms vary by provider and eligibility. Taxes, shipping and add-ons are excluded.
  • Up to $5.99 off
    In Stock
    Torque Solution HKS Blow Off Valve Adapter w/Plug
    Torque Solution

    HKS Blow Off Valve Adapter w/Plug

    Fits: 02-07 WRX, 04-21 STI

    Only 6 left
    $4400$49.99 Save 12%
  • Up to $22.21 off
    In Stock
    Torque Solution Silicone Radiator Hose Kit Blue WRX 08-14 / STI 08-18 / Forester XT 09-13
    Torque Solution

    Silicone Radiator Hose Kit - Blue

    Fits: 08-14 WRX, 08-18 WRX STI, 09-13 Forester XT

    Only 2 left
    $10000$122.21 Save $22.21
  • Up to $54.88 off
    In Stock
    Torque Solution Billet Aluminum Rear Differential Brace Black WRX/STI 2008-21
    Torque Solution

    Billet Aluminum Rear Differential Brace - Black

    Fits: 08-21 WRX, 08-21 WRX STI

    Only 15 left
    $23400$288.88 Save $54.88
    Pay over time · Est. $7.31/payment
    ⓘ

    Illustrative estimate only, not a financing quote or guaranteed offer. Actual payments, frequency and terms vary by provider and eligibility. Taxes, shipping and add-ons are excluded.
  • Up to $9.65 off
    In Stock
    Torque Solutions 08-14 WRX / 08-21 STI / 05-09 Legacy / 09-14 Forester Steering Rack Brace | TS-SU-388
    Torque Solution

    Steering Rack Brace

    Fits: 08-14 WRX, 08-21 WRX STI, 05-09 Legacy, 09-14 Forester

    Only 9 left
    $5700$66.65 Save 14%
  • Up to $14.88 off
    In Stock
    Torque Solution 02-21 WRX / 04-21 STI Solid Billet Positive Shift Kit | TS-SU-PSK-SB
    Torque Solution

    Solid Billet Positive Shift Kit

    Fits: 02-21 WRX, 04-21 WRX STI

    Only 11 left
    $7400$88.88 Save 17%
  • Up to $37.10 off
    In Stock
    Torque Solution Forged Aluminum Wheel Spacer Subaru 56mm Hub 5x114.3 - 20mm
    Torque Solution

    Forged Aluminum Wheel Spacers 5x114.3 56.1mm Hub - 20mm

    Fits: 04-21 WRX STI, 15-26 WRX

    Only 1 left
    $17400$211.10 Save $37.10
  • Up to $22.90 off
    In Stock
    Turbosmart Kompact Plumb Back BPV 2002-2007 WRX / 2004-2019 STI / 2004-2008 Forester XT
    Turbosmart

    Kompact Plumb Back BPV

    Fits: 02-07 WRX, 04-21 STI, 04-08 FXT

    Only 11 left
    $20609$228.99 Save $22.90
    Pay over time · Est. $6.44/payment
    ⓘ

    Illustrative estimate only, not a financing quote or guaranteed offer. Actual payments, frequency and terms vary by provider and eligibility. Taxes, shipping and add-ons are excluded.

  • In Stock
    Grimmspeed 02-07 WRX / 04-21 STI / 04-08 FXT Top Mount Intercooler Y-Pipe Kit Black | 090096
    GrimmSpeed

    Top Mount Intercooler Aluminum Y-Pipe Kit - Black

    Fits: 04-21 WRX STI, 02-07 WRX, 04-08 Forester XT, 04-06 Baja XT

    $24500
    Pay over time · Est. $7.66/payment
    ⓘ

    Illustrative estimate only, not a financing quote or guaranteed offer. Actual payments, frequency and terms vary by provider and eligibility. Taxes, shipping and add-ons are excluded.

  • In Stock
    GrimmSpeed Lower Uppipe Gasket | 026001
    GrimmSpeed

    Exhaust Manifold to Up Pipe Gasket

    Fits: 02-14 WRX, 04-21 WRX STI, 05-09 Legacy GT, 04-13 Forester XT

    $2900

  • In Stock
    Injector Dynamics [02-14 WRX, 07-19 WRX STI] ID1050x Top Feed Power Package 1
    Injector Dynamics

    ID1050x Top Feed Power Package 1

    Fits: 02-14 WRX, 07-19 WRX STI

    From $64300
    Pay over time · Est. $20.09/payment
    ⓘ

    Illustrative estimate only, not a financing quote or guaranteed offer. Actual payments, frequency and terms vary by provider and eligibility. Taxes, shipping and add-ons are excluded.
  • Up to $500.84 off
    In Stock
    Invidia [08-14 WRX/STI Hatchback] N1 Street Burnt Titanium Tip Cat Back Exhaust | HS08SW5GTT
    Invidia

    N1 Street Cat-Back Exhaust - Burnt Titanium Tip

    Fits: 08-14 WRX/STI Hatchback

    Only 4 left
    $92800$1,428.84 Save $500.84
    Pay over time · Est. $29.00/payment
    ⓘ

    Illustrative estimate only, not a financing quote or guaranteed offer. Actual payments, frequency and terms vary by provider and eligibility. Taxes, shipping and add-ons are excluded.
  • Up to $118 off
    Perrin 08-21 WRX/STI / 13-23 BRZ / 13-16 FRS / 17-21 GT86 / 22-23 GR86 Rear Adjustable Sway Bar 19mm | PSP-SUS-230
    Perrin Performance

    Perrin Rear Adjustable Sway Bar 19mm

    Fits: 08-21 WRX/STI, 13-23 BRZ, 13-16 FRS, 17-21 GT86, 22-23 GR86

    $20400$322.00 Save $118
    Pay over time · Est. $6.38/payment
    ⓘ

    Illustrative estimate only, not a financing quote or guaranteed offer. Actual payments, frequency and terms vary by provider and eligibility. Taxes, shipping and add-ons are excluded.
  • Up to $64 off
    Perrin 08-21 WRX/STI / 17-21 BRZ Rear Adjustable Sway Bar 25mm | PSP-SUS-234
    Perrin Performance

    Perrin Rear Adjustable Sway Bar 25mm

    Fits: 08-21 WRX/STI, 13-16 FR-S, 13-20 BRZ, 17-20 86, 22-26 BRZ/GR86

    $27400$338.00 Save $64
    Pay over time · Est. $8.56/payment
    ⓘ

    Illustrative estimate only, not a financing quote or guaranteed offer. Actual payments, frequency and terms vary by provider and eligibility. Taxes, shipping and add-ons are excluded.
  • Up to $39.80 off
    In Stock
    Perrin 08-21 STI Electronic Boost Control Solenoid | ASM-TAC-731
    Perrin Performance

    Perrin Electronic Boost Control Solenoid

    Fits: 08-21 STI

    Only 8 left
    Black Friday Deal: 20% Off Ends 1/4
    $15920$199.00 Save $39.80