GrimmSpeed

Exhaust leaks seem to be an all-too-common issue with Most modded Subarus. They tend to spring up out of nowhere and cause hours of troubleshooting headaches. The Most guaranteed leak you will get though is if you run an aftermarket 3 Inch downpipe to an OEM or OEM like 2.5 Inch Exhaust. Compare our..

Most Complete and COMPACT Air/Oil Separator on the market! An Air/Oil Separator has one job, remove the oil from the engine ventilation system so the oil does Not get sent through the intake system. The GrimmSpeed Air/Oil Separator for Subaru vehicles has a unique Design that allows you to maintain ..

Most Complete and Compace Air/Oil Separator on the market! An Air/Oil Separator has one job, remove the oil from the engine ventilation system so the oil does Not get sent through the intake system. The GrimmSpeed Air/Oil Separator for Subaru vehicles has a unique Design that allows you to maintain ..

Hardcore heat cycles or repetitive removal can Over time wear on the O-rings in the AOS. Maybe you like the peace of mind or have a show car you always want in perfect condition, this rebuild kit will get you all sealed up! It comes with all necessary o-rings for a full replacement. (6) O-rings Inc..

Most Complete and Compace Air/Oil Separator on the market! An Air/Oil Separator has one job, remove the oil from the engine ventilation system so the oil does Not get sent through the intake system. The GrimmSpeed Air/Oil Separator for Subaru vehicles has a unique Design that allows you to maintain ..

Most Complete and Compact Air/Oil Separator on the market! An Air/Oil Separator has one job, remove the oil from the engine ventilation system so the oil does Not get sent through the intake system. The GrimmSpeed Air/Oil Separator for Subaru vehicles has a unique Design that allows you to maintain ..

Engineered to Perfection.Tired of being teased for your corroded alternator and boring engine bay? Step your Alternator Cover game up; GrimmSpeed has just what you need. This cover mounts securely in place of your plastic factory cover and its asymmetric Design is intended to compliment the GrimmSpe..

Engineered to Perfection. Tired of being teased for your corroded alternator and boring engine bay? Step your Alternator Cover game up; GrimmSpeed has just what you need. This cover mounts securely in place of your plastic factory cover and its asymmetric Design is intended to compliment the GrimmSp..

Don't risk cracking your OE plastic inlet. One of the biggest complaints we've heard from 15-21 WRX owners has to do with cracks forming in their OEM plastic turbo inlets from removal, Installation or just general wear and tear. As the plastic inlet ages and becomes brittle, it has a tendency to sep..

Don't risk cracking your OE plastic inlet. One of the biggest complaints we've heard from 15-21 WRX owners has to do with cracks forming in their OEM plastic turbo inlets from removal, Installation or just general wear and tear. As the plastic inlet ages and becomes brittle, it has a tendency to sep..

Now available for Subaru Impreza models from 1996-2008. The Antenna Delete Plate is made from Black powder-coated aluminum that is fade-resistant to the sun. Installation is easy and the end result appearance is that of an OEM part. As with all GrimmSpeed products, one-of-a-kind craftsmanship is beh..

An elegantly Engineered solution. Custom Machined Adapter Makes use of the factory inlet recirculation port, instead of blocking it off Black Anodized Finish - Protects the assembly from corrosion in an extremely demanding environment Viton O-Ring Increased Durability and resistance to oil/gasoline..