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2015-2021 STI Engine

  • Fumoto Nipple Cap for use with 3/8 Size NippleFumoto Nipple Cap for use with 3/8 Size Nipple
    Current price$2.95

    Fumoto Nipple Cap for use with 3/8 Size Nipple

    SKU #NC-10

    The NC-10 is a revolutionary nipple cap designed and produced exclusively by FUMOTO. The NC-10 is made to fit perfectly on Fumoto valve nipples...

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    Current price$2.95
  • COBB Battery Tie Down Black Subaru ModelsCOBB Battery Tie Down Black Subaru Models
    Current price$65.00

    COBB Battery Tie Down Black Subaru Models

    SKU #800160

    Our Subaru Battery Tie Down is professionally designed in CAD and machined from quality billet aluminum. A black anodized finish and laser etched...

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    Current price$65.00
  • Original price$115.00
    Current price$97.75

    Perrin Fender Shroud Kit Red 2015-2021 WRX / 2015-2021 STI

    SKU #PSP-ENG-550RD

    Matching our signature pulley cover design, the angled cutouts look great while concealing the factory fender gap. PERRIN fender shrouds extend...

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    Original price$115.00
    Current price$97.75
    Save 15%
  • GrimmSpeed Radiator Shroud Red 2015-2021 WRX / 2015-2021 STIGrimmSpeed Radiator Shroud Red 2015-2021 WRX / 2015-2021 STI
    Current price$94.00

    GrimmSpeed Radiator Shroud Red 2015-2021 WRX / 2015-2021 STI

    SKU #096042

    At GrimmSpeed, we pride ourselves in the design of our aesthetic pieces just as much as our performance parts. The brand new GrimmSpeed Radiator...

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    Current price$94.00
  • Original price$25.68
    Current price$23.11

    Gates Micro-V Stretch Belt AC 2008-2014 WRX / 2008-2021 STI

    SKU #K040317SF

    The 2008-10 Subaru Impreza, Forester, and Outback with 2.5L engines utilize Stretch Fit belt technology on the A/C compressor drives. Once again,...

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    Original price$25.68
    Current price$23.11
    Save 10%
  • Original price$113.00
    Current price$96.05

    Perrin Belt Cover Neon Yellow 2002-2014 WRX / 2004-2021 STI

    SKU #PSP-ENG-150NY

    The PERRIN Performance pulley cover is constructed of 5052 Plate aluminum with precision drilled mounting holes and additional pre-marked indents...

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    Original price$113.00
    Current price$96.05
    Save 15%
  • Original price$99.00
    Current price$84.15

    Perrin Belt Cover Black 2002-2014 WRX / 2004-2021 STI

    SKU #PSP-ENG-150BK

    The PERRIN Performance pulley cover is constructed of 5052 Plate aluminum with precision drilled mounting holes and additional pre-marked indents...

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    Original price$99.00
    Current price$84.15
    Save 15%
  • Killer B Motorsport Ultimate Oil Pickup and Baffle Combo 2002-2014 WRX / 2004-2021 STI / 2005-2009 Legacy GT / 2004-2013 Forester XTKiller B Motorsport Ultimate Oil Pickup and Baffle Combo 2002-2014 WRX / 2004-2021 STI / 2005-2009 Legacy GT / 2004-2013 Forester XT
    Current price$219.00

    Killer B Motorsport Ultimate Oil Pickup and Baffle Combo 2002-2014 WRX / 2004-2021 STI / 2005-2009 Legacy GT / 2004-2013 Forester XT

    SKU #070-EJWT

    We have all heard the horror stories. You’re just driving down the road minding your own business and then boom. Your engine blows without...

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    Current price$219.00
  • Grimmspeed Fender Shroud Kit Red 2015-2021 WRX / 2015-2021 STIGrimmspeed Fender Shroud Kit Red 2015-2021 WRX / 2015-2021 STI
    Current price$94.00

    Grimmspeed Fender Shroud Kit Red 2015-2021 WRX / 2015-2021 STI

    SKU #096048

    Do away with the flimsy, boring factory fabric shrouds and make your engine bay stand out with the BRAND NEW GrimmSpeed Fender Shrouds for the...

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    Current price$94.00
  • Killer B Motorsport Ultimate Oil Pickup 2002-2014 WRX / 2004-2021 STI / 2005-2009 Legacy GT / 2004-2013 Forester XTKiller B Motorsport Ultimate Oil Pickup 2002-2014 WRX / 2004-2021 STI / 2005-2009 Legacy GT / 2004-2013 Forester XT
    Current price$149.00

    Killer B Motorsport Ultimate Oil Pickup 2002-2014 WRX / 2004-2021 STI / 2005-2009 Legacy GT / 2004-2013 Forester XT

    SKU #070-110

    We have all heard the horror stories. You’re just driving down the road minding your own business and then boom your engine blows without...

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    Current price$149.00
  • Original price$150.03
    Current price$127.53

    GSC Power-Division Stainless Steel Exhaust Valves 32mm 2002-2014 WRX / 2004-2021 STI

    SKU #2011-8

    GSC set out to create the best performance, longest lasting Subaru intake valves available to the aftermarket. Using advanced 3D design and...

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    Original price$150.03
    Current price$127.53
    Save 15%
  • Original price$16.75
    Current price$14.24

    GSC Power-Division Viton Valve Stem Seals 2002-2014 WRX / 2004-2021 STI

    SKU #1022

    Here, you are looking at the GSC Power Division Viton Valve Stem Seals. If your head is currently getting assembled or if you have it at your...

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    Original price$16.75
    Current price$14.24
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  • GrimmSpeed Alternator Cover Black 2002-2014 WRX / 2004-2021 STI / 2005-2009 Legacy GT / 2004-2013 Forester XT
    Current price$94.00

    GrimmSpeed Alternator Cover Black 2002-2014 WRX / 2004-2021 STI / 2005-2009 Legacy GT / 2004-2013 Forester XT

    SKU #099012

    Tired of being teased for your corroded alternator and boring engine bay? Step your Alternator Cover game up; GrimmSpeed has just what you need....

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    Current price$94.00
  • Original price$113.00
    Current price$96.05

    Perrin Belt Cover Hyper Pink 2002-2014 WRX / 2004-2021 STI

    SKU #PSP-ENG-150HP

    The PERRIN Performance pulley cover is constructed of 5052 Plate aluminum with precision drilled mounting holes and additional pre-marked indents...

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    Original price$113.00
    Current price$96.05
    Save 15%
  • Grimmspeed Fender Shroud Kit Hi-Vis Neon Yellow 2015-2021 WRX / 2015-2021 STIGrimmspeed Fender Shroud Kit Hi-Vis Neon Yellow 2015-2021 WRX / 2015-2021 STI
    Current price$99.00

    Grimmspeed Fender Shroud Kit Hi-Vis Neon Yellow 2015-2021 WRX / 2015-2021 STI

    SKU #096057

    Do away with the flimsy, boring factory fabric shrouds and make your engine bay stand out with the BRAND NEW GrimmSpeed Fender Shrouds for the...

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    Current price$99.00
  • Original price$140.00
    Current price$119.00

    Perrin Fender Shroud Kit Neon Yellow 2015-2021 WRX / 2015-2021 STI

    SKU #PSP-ENG-550NY

    Matching our signature pulley cover design, the angled cutouts look great while concealing the factory fender gap. PERRIN fender shrouds extend...

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    Original price$140.00
    Current price$119.00
    Save 15%
  • Original price$63.00
    Current price$53.55

    Perrin Boost Solenoid Cover Black 2008-2021 STI

    SKU #PSP-ENG-161BK

    The PERRIN Performance boost controller cover is constructed of 5052 plate aluminum with precision bends and mounting holes to fit perfect under...

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    Original price$63.00
    Current price$53.55
    Save 15%
  • Original price$75.00
    Current price$55.00

    NGK Laser Iridium Spark Plug Set 2006-2014 WRX / 2004-2021 STI / 2005-2009 LGT / 2004-2013 FXT

    SKU #5245

    NGK Laser Iridium spark plugs offer the best combination of performance and longevity. Actual OE or equivalent replacement spark plug. Laser...

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    Original price$75.00
    Current price$55.00
    Save 27%
  • Original price$88.00
    Current price$74.80

    Perrin Battery Tie Down Hyper Pink Most Subaru Models

    SKU #PSP-ENG-700HP

    The PERRIN Battery Tie Down is a quick and affordable upgrade. Keep your battery from moving in all situations. Machined from billet aluminum...

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    Original price$88.00
    Current price$74.80
    Save 15%
  • GrimmSpeed Radiator Shroud Hi-Vis Neon Yellow 2015-2021 WRX / 2015-2021 STIGrimmSpeed Radiator Shroud Hi-Vis Neon Yellow 2015-2021 WRX / 2015-2021 STI
    Current price$99.00

    GrimmSpeed Radiator Shroud Hi-Vis Neon Yellow 2015-2021 WRX / 2015-2021 STI

    SKU #096056

    At GrimmSpeed, we pride ourselves in the design of our aesthetic pieces just as much as our performance parts. The brand new GrimmSpeed Radiator...

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    Current price$99.00
  • Original price$352.00
    Current price$299.20

    Perrin V2 Engine Mounts 2002-2021 WRX / 2004-2021 STI / 2013-2024 BRZ / 2013-2016 FRS / 2017-2021 GT86 / 2022-2024 GR86

    SKU #PSP-DRV-055

    A new design on Perrins' very popular engine mounts offering! By engineering a unique design that works across most Subaru platforms Perrin was...

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    Original price$352.00
    Current price$299.20
    Save 15%
  • GrimmSpeed Lightweight Crank Pulley Red 2002-2014 WRX / 2004-2021 STI / 2005-2009 Legacy GT / 2004-2013 ForesterGrimmSpeed Lightweight Crank Pulley Red 2002-2014 WRX / 2004-2021 STI / 2005-2009 Legacy GT / 2004-2013 Forester
    Current price$135.00

    GrimmSpeed Lightweight Crank Pulley Red 2002-2014 WRX / 2004-2021 STI / 2005-2009 Legacy GT / 2004-2013 Forester

    SKU #095015R

    In our opinion, the OEM Subaru crank pulley has been a cause for concern ever since its original design. It is relatively heavy, susceptible to...

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    Current price$135.00
  • COBB Spark Plug Set One Step Colder 2006-2014 WRX / 2004-2021 STI / 2005-2009 LGT / 2004-2008 FXTCOBB Spark Plug Set One Step Colder 2006-2014 WRX / 2004-2021 STI / 2005-2009 LGT / 2004-2008 FXT
    Current price$65.00

    COBB Spark Plug Set One Step Colder 2006-2014 WRX / 2004-2021 STI / 2005-2009 LGT / 2004-2008 FXT

    SKU #D44700

    This is the factory spark plug as installed in the 2018 Subaru WRX STI Type RA and 2019 Subaru WRX STI. The main differences are a heat range...

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    Current price$65.00
  • Grimmspeed Red Reservoir Cap Set Most Subaru Models
    Current price$63.00

    Grimmspeed Red Reservoir Cap Set Most Subaru Models

    SKU #120070

    It's a simple fact: the yellow OEM Subaru engine bay caps are just plain UGLY . They don't match anything around them and they stick out like a...

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    Current price$63.00