GrimmSpeed Performance Parts

For more information on GrimmSpeed products you may visit the GrimmSpeed website.

GrimmSpeed Cooling:


Radiator Fans / Shrouds


GrimmSpeed Radiator Shroud
How many times have you lost a wrench or socket in your engine bay? Yeah, that’s what I thought, too many to count. Finally after all of these years of losing tools, GrimmSpeed has come to the rescue...

Thermostats


GrimmSpeed Thermostat
First rule of thumb, excess heat kills engines and power. GrimmSpeed is on your side with our new Thermostat. Our thermostat will make an immediate and direct impact on your engine running temps. The...

GrimmSpeed Engine:


Engine Accessories


GrimmSpeed Battery Tie Down
 lean up that engine bay and show your boxer pride with our new Battery Tie Down. We started out with a block of 6061 Aluminum, threw in a bunch of CNC Milling time, dropped it in the anodizing tank...
GrimmSpeed Cool Touch Oil Cap
GrimmSpeed brings you another innovative product, a first of its kind “Cool Touch” Delrin Oil Cap that fits all Subaru engines. No more burning an imprint of your oil cap onto your hand! Kick...
GrimmSpeed Master Cylinder Brace
Pressing Subaru brakes leaves a lot to be desired, especially when every inch counts in a race or when you are depending on them to save your life! The dramatic firewall flex is the source of this performance...
GrimmSpeed Phenolic Thermal Spacer
Do you know what your intake manifold sits on?...a superheated engine. If you don’t know already, the cooler your intake air is the more HP your car will achieve. We present you the answer to this...

Oil Catch Cans


GrimmSpeed Air/Oil Seperator
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 Subaru Air/Oil Separator has a unique patent pending...

Pulleys


GrimmSpeed Lightweight Crank Pulley
The OEM Subaru crank pulley has been a cause for concern ever since its original design. It is extremely heavy, susceptible to catastrophic failure, and quite unsightly. Continuing to use this on our...

GrimmSpeed Exhaust:


Down Pipes / Mid Pipes / Up Pipes / Test Pipes


GrimmSpeed Downpipe
We are extremely proud to introduce our Catless Divorced Downpipe for Subarus. It's safe to say, the years our engineering department spent on this downpipe have paid off. A GrimmSpeed™ Catless...
GrimmSpeed HiFlow Crosspipe
Subaru supplies its turbo owners with a tiny little crosspipe from the factory. 50% of your exhaust gasses are passing through this tiny pipe and, well, that’s just a problem.The GrimmSpeed HiFlow...
GrimmSpeed HiFlow UpPipe
Adding an aftermarket Up Pipe is one of the first things you should do to your Subaru. Arguably one of the best $/HP ratios. Our goal was to make a premium heavy duty Up Pipe for our customers!The entire...

Exhaust Accessories


GrimmSpeed Downpipe Adapter
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...
GrimmSpeed External Wastegate Block Off Plate
A full External Wastegate (EWG) set-up consists of a EWG up-pipe and a wastegate. The EWG set-up creates better turbo spool because it can utilize the exhaust gas more efficiently; however, the full EWG...
GrimmSpeed Intake/Exhaust Gaskets
Please read the notes in red on each part number for the individual gasket information.GrimmSpeed OEM Style Gasket, OEM quality without the high OEM price.At GrimmSpeed we have worked with endless amounts...

GrimmSpeed Exterior:


Antennas


GrimmSpeed Antenna Delete Plate
The GrimmSpeed Antenna Delete Plate replaces the OEM whip-style antenna that many drivers dislike and therefore do not fully extend. Due to this, it is difficult to obtain quality radio coverage. The...

Tow Hooks


GrimmSpeed Front License Plate Delete
So after you get our License Plate Relocation kit you are left with some unsightly holes in your front bumper. Fortunately for you we have come to the rescue with a sleek and stylish front plate delete...
GrimmSpeed License Plate Relocation Kit
License plates are a necessary evil on the front of our cars, but you can save your front bumper from looking boring or blocking flow to your FMIC with the GrimmSpeed License Plate Relocation Kit. Utilizing...

GrimmSpeed Forced Induction:


Boost Controllers


GrimmSpeed Electronic Boost Control Solenoid
The GrimmSpeed Electronic Boost Control Solenoid is designed to work with your factory computer (requires tuning). It will not reduce the life of your factory computer because it is designed to draw the...
GrimmSpeed Manual Boost Controller
Welcome to the next evolution of boost control, The GrimmSpeed Manual Boost Controller. Introducing the most refined Manual Boost Controller available on the market. We spent over a year working hand...

Turbo Accessories


GrimmSpeed Internal Wastegate Bracket
The internal wastegate (IWG) bracket is used in place of the stock wastegate actuator when moving to an external wastegate setup. In the previous years Subary owners had to weld the IWG shut on their...
GrimmSpeed Turbo Heat Shield
We knew when it came time to design this product we didn’t want to just create another heat shield to add to the mix, but create another level of product. The basic heat shield would not cut it,...

Wastegates


GrimmSpeed External Wastegate UpPipe
An External Wastegate (EWG) allows exhaust gases to be diverted prior to entering the turbo; creating quicker turbo spool. The GrimmSpeed™ EWG has a larger diameter than a stock internal wastegate...

GrimmSpeed Intake:


Mass Air Systems


GrimmSpeed MAF Block Off
When you upgrade your Subaru to a Blow Through System you will need a way to block off the location where the old MAF Sensor was located, well GrimmSpeed has the answer. GrimmSpeed MAF Block Off Plate...

GrimmSpeed Tools & Fluids:


Paint


GrimmSpeed Paint
Stepping out with style, GrimmSpeed brings you the ONLY way to get 100% paint match to your most desirable colors. Subaru Cherry BlossomSubaru’s famed “Cherry Blossom” color. Paint...

Tools


GrimmSpeed Specialty Tools
The right tools to fix the job, it’s what you can expect from GrimmSpeedSubaru T70 Torx BitThe hard to find T70 Torx bit is needed to change the transmission fluid on the 04+ WRX, 03+ Legacy, and...