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Home
Dyno Tuning
Pricing
Pre-Tune Checklist
Ethanol Calculator
Our Dyno
FAQ
Base Map / Tune Deposit
E-Tuning
How E-Tunes work
Parts
JM Builds
Services
Engine Builds
Build Consultation
Machine Shop
Cylinder Head Services
Mod Guides
2022+ WRX Mod Guide
2015-2021 WRX Mod Guide
2004-2021 STI Mod Guide
2008-2015 Evo X Mod Guide
2013-2021 BRZ/FRS/86 Mod Guide
Blog
Contact
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Go Fast Bits Mach 2 TMS Recirculating Diverter Valve – 15-21 WRX
$
172.80
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Go Fast Bits Respons TMS Blow Off Valve – 15-21 WRX
$
307.80
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GrimmSpeed (STI Style) Turbo Outlet Hose – 08-14 WRX / 05-09 LGT
$
110.00
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GrimmSpeed 12mm Two Position Poly Exhaust Hanger Set of 4
$
42.00
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Grimmspeed 3-Bolt Inlet Up Pipe – 06-14 WRX / 04-21 STI / 06-08 FXT / 07-09 LGT / 07-09 OBXT
$
290.00
–
$
335.00
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GrimmSpeed 3″ Downpipe to OEM Catback Adaptor Kit – Subaru Turbo Universal
$
60.00
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GrimmSpeed Billet Top Mount Intercooler Kit – 22+ WRX / 19+ Ascent / 20+ Outback/Legacy XT
$
899.00
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GrimmSpeed Boost Control Solenoid Cover – 2008-2021 STI
$
58.00
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GrimmSpeed Catback Exhaust System, Resonated – 2011-2021 WRX / STI (Sedan Only)
$
1,532.00
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GrimmSpeed Catback Exhaust System, Un-Resonated – 2011-2021 WRX / STI (Sedan Only)
$
1,349.00
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GrimmSpeed DRY-CON Performance Panel Air Filter – 08-21 WRX / 08-18 STI
$
62.00
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GrimmSpeed EJ 25 Head Gasket Set – 06-14 WRX / 04-07 STI / 04-08 FXT / 05-09 LGT (SAVCS)
$
146.00
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GrimmSpeed EJ 25 Head Gasket Set – 06-14 WRX / 04-07 STI / 04-08 FXT / 05-09 LGT (SAVCS)
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