Engine/Drivetrain

**New for the 2008-2014 Subaru WRX, 2005-2009 Legacy GT and 2005-2009 Outback XT.** The most important feature of a recirculating bypass valve (Recirc Valve, BPV, BOV) on your Subaru is to evacuate the pressure out of the charge circuit when the throttle...

Maintenence is key to keeping your car performing to the fullest of its abilities, and our wave spring bypass valve certainly sees a lot of action under the hood of your car.  Every few years we recommend replacing the o-rings & wave spring on...

Want the best and most effective chassis stiffening brace available for your GH and GR Chassis WRX or STi? Well look no further! Our Nameless Performance Twin Tube, single piece weldment front strut tower brace! Why is it the best? How is it different...

Want the best and most effective chassis stiffening brace available for your GH and GR Chassis WRX or STi? Well look no further! Our Nameless Performance Twin Tube, single piece weldment front strut tower brace! Why is it the best? How is it different...

Magnetic oil drain plugs have been proven to extend an engine's life by capturing the fine metallic particles that the oil filter does not. The Nameless Performance magnetic drain plug provides an extra layer of engine protection by retaining the...

Let’s face it, Subaru may make great looking cars, but they are terrible at under hood beauty parts! Your battery tie down is probably like the rest: thin stamped steel, used to be black, probably a little bent up with some rusty nuts. Hell, you...

Ditch the Boring Factory Plastic for a Custom Engine Bay Focal PointWhen you pop the hood on your WRX or STI, the faded, flimsy OEM plastic belt guard is one of the biggest eyesores in the engine bay. The IAG Aluminum Alternator Cover replaces that cheap...

The Standard-Setting Engine Defense for High-Power EJ EnginesOn turbocharged 2.5L EJ-series engines (EJ255 and EJ257), high boost levels and aggressive driving create intense crankcase pressure that pushes oil mist and blow-by vapors directly into your...

Eliminate Drivetrain Slop & Improve Throttle ResponseSubaru designed the factory pitch stop mount to control engine and drivetrain movement, but the OEM plastic body and soft rubber bushings prioritize cabin quietness over performance. The Whiteline...

On turbocharged Subaru models, the factory Pitch Mount is constructed of a plastic composite and uses bushings geared towards providing maximum comfort. Replacing it with a COBB Pitch Stop Mount increases overall drivetrain stiffness, eliminates power...

Koyorad VH091662 – Hyper V-Core Aluminum Racing Radiator for Manual Subaru Models (2008–2021 WRX/STI & 2005–2009 Legacy GT/Outback XT)Upgrade your cooling with the Koyorad VH091662 Hyper V-Core radiator—a high-density,...

This Fumoto Oil Drain Valve Kit for Subaru FA and FB series engines, available exclusively from Nameless Performance, includes everything you need to change your oil quickly and without making a mess! The Original Fumoto Oil Drain Valve has been...

The Ultimate Big-Power Option for Street & Track WRX BuildsThe ACT Xtreme Performance Street Sprung Clutch Kit (SB11-XTSS) is engineered specifically for high-powered, turbo Subarus pushing past the limits of a standard heavy-duty clutch. Pairing...

The Definitive Daily-Driver Clutch UpgradeIf you are running an aggressive street build, a full-bolt-on setup (FBO), or an upgraded flex-fuel map, your stock Subaru clutch won't survive for long. The ACT Heavy Duty Performance Street Sprung Clutch Kit...

The Ultimate Insurance Policy for High-Performance DrivetrainsWhen you drop in a heavy-duty clutch or a lightweight chromoly flywheel, upgrading your flywheel hardware isn't just an afterthought—it's mandatory safety. Standard factory flywheel...

The $4 Lifesaver of Your Transmission InstallThere is nothing worse than fighting a heavy transmission bellhousing on a transmission jack because your clutch disc is off by a single millimeter. The ACT Clutch Alignment Tool (AT90) is a simple,...

Small Component. Massive Responsibility.Weighing in at just a fraction of a pound, the ACT Clutch Pilot Bearing (PB1004) is arguably the most critical "while you're in there" replacement part in your entire drivetrain. Pressed directly into the center...

K&N washable, reusable High-Flow Air Filters feature a state-of-the-art design of layered, oiled cotton media engineered to improve airflow and capture contaminants, and are designed to provide an increase in horsepower. Each performance air filter...