On Most Orders Over $250*
On Most Orders Over $250*
4.5 / 5.0
10 Reviews
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...
View full details4.9 / 5.0
10 Reviews
Our Subaru Battery Tie Down is professionally designed in CAD and machined from quality billet aluminum. A black anodized finish and laser etched...
View full details4.8 / 5.0
10 Reviews
Matching our signature pulley cover design, the angled cutouts look great while concealing the factory fender gap. PERRIN fender shrouds extend...
View full details5 / 5.0
9 Reviews
At GrimmSpeed, we pride ourselves in the design of our aesthetic pieces just as much as our performance parts. The brand new GrimmSpeed Radiator...
View full details5 / 5.0
9 Reviews
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,...
View full details5 / 5.0
8 Reviews
The PERRIN Performance pulley cover is constructed of 5052 Plate aluminum with precision drilled mounting holes and additional pre-marked indents...
View full details5 / 5.0
8 Reviews
The PERRIN Performance pulley cover is constructed of 5052 Plate aluminum with precision drilled mounting holes and additional pre-marked indents...
View full details4.57 / 5.0
7 Reviews
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...
View full details5 / 5.0
7 Reviews
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...
View full details4.86 / 5.0
7 Reviews
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...
View full details5 / 5.0
6 Reviews
GSC set out to create the best performance, longest lasting Subaru intake valves available to the aftermarket. Using advanced 3D design and...
View full details5 / 5.0
6 Reviews
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...
View full details5 / 5.0
6 Reviews
Tired of being teased for your corroded alternator and boring engine bay? Step your Alternator Cover game up; GrimmSpeed has just what you need....
View full details5 / 5.0
5 Reviews
The PERRIN Performance pulley cover is constructed of 5052 Plate aluminum with precision drilled mounting holes and additional pre-marked indents...
View full details5 / 5.0
5 Reviews
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...
View full details4.8 / 5.0
5 Reviews
Matching our signature pulley cover design, the angled cutouts look great while concealing the factory fender gap. PERRIN fender shrouds extend...
View full details5 / 5.0
5 Reviews
The PERRIN Performance boost controller cover is constructed of 5052 plate aluminum with precision bends and mounting holes to fit perfect under...
View full details4.75 / 5.0
4 Reviews
NGK Laser Iridium spark plugs offer the best combination of performance and longevity. Actual OE or equivalent replacement spark plug. Laser...
View full details5 / 5.0
4 Reviews
The PERRIN Battery Tie Down is a quick and affordable upgrade. Keep your battery from moving in all situations. Machined from billet aluminum...
View full details5 / 5.0
4 Reviews
At GrimmSpeed, we pride ourselves in the design of our aesthetic pieces just as much as our performance parts. The brand new GrimmSpeed Radiator...
View full details3.5 / 5.0
4 Reviews
A new design on Perrins' very popular engine mounts offering! By engineering a unique design that works across most Subaru platforms Perrin was...
View full details5 / 5.0
4 Reviews
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...
View full details5 / 5.0
3 Reviews
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...
View full details2.67 / 5.0
3 Reviews
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...
View full detailsUpgrade and maintain your Subaru STI engine with a wide selection of aftermarket performance engine mods & OEM replacement parts for your STI from Subimods. From the basics like oil, spark plugs, coil pack & engine covers to internal engine components, engine belts, air / oil separators (AOS), motor mounts & more - find quality kits & replacement parts at a great price from top brands like Mishimoto, GrimmSpeed, Cusco, IAG Performance, Perrin, Odyssey & more.
Engine parts compatible with: 2015, 2016, 2017, 2018, 2019, 2020 & 2021 Subaru STI.