If you own a Subaru WRX, knowing the proper lug nut size and torque specifications is crucial for safe wheel installation. The WRX uses unique lug nuts and bolts to securely fasten the wheels, so using the wrong hardware can lead to wheel vibration, loosening, or even dangerous wheel detachment. In this article, we’ll cover the Subaru WRX lug nut sizes, proper torque specs, and lug nut socket size needed for hassle-free wheel changes.

Subaru WRX Lug Nut Sizes

The Subaru WRX uses a 12×1.25 lug pattern with a 60° tapered seat. The most common OEM lug nut size is 12×1.25, requiring a 19mm socket or wrench to remove and install. Always check your owner’s manual or factory service guide for the exact lug nut measurements.

For aftermarket wheels, companies like Enkei and BBS may supply alternative lug nuts in 12×1.25 or 12×1.5 sizes. Just ensure whatever lug nuts you choose properly match the wheel hubs on your WRX with no looseness or binding. Mixing lug nut types can damage the wheels or cause them to not seat correctly.

Subaru WRX Lug Nut Torque Specs

Properly torquing the WRX’s lug nuts is critical to avoid safety hazards. Under-torqued lug nuts can vibrate loose over time. Over-tightening can damage the bolts or alloy wheels.

For most 2014-2022 WRX models with 12×1.25 lug nuts, the factory torque spec is 80 ft-lbs. Some STI models specify slightly higher specs up to 90 ft-lbs due to their larger lug nut and bolt size. Always use a calibrated torque wrench to achieve accurate, even tightening without guesswork.

It’s also essential to follow the proper lug nut tightening sequence, typically crisscrossing diagonally across the wheel in an X-pattern. This ensures the wheel mounts evenly against the hub without warping. Torque the lug nuts in multiple passes up to the final spec, rechecking torque after around 100 miles of driving.

Choosing the Correct Subaru WRX Lug Nut Socket Size

To remove the factory lug nuts, you’ll need a socket or wrench that properly fits the nut sizes. As mentioned earlier, most WRX models use 12×1.25 lug nuts, requiring a 19mm socket. Using undersized sockets can round off the lug nuts, while oversized ones will slip and strip the bolts. It’s also crucial to use a 6 or 12-point socket designed for thin-walled lug nuts. Do not use traditional 6 or 12-point sockets, which can damage lug bolts and wheels. A flex-head wrench can also work well for the tight spaces around some WRX brake calipers. Just be careful not to round off the lug nut corners with any improper tools.

What Size are Subaru WRX Lug Nuts? Everything You Need to Know

Why Choose BONOSS Lug Nuts for Subaru WRX?

Upgrading your Subaru WRX lug nuts is a simple yet effective performance modification. Brands like BONOSS offer specially engineered lug nuts to enhance grip, durability, and appearance over stock nuts. Here are some key benefits of choosing BONOSS lug nuts:

  • Crafted from forge steel for 2-3 times more tensile strength than stock nuts. This means no loosening or breaking even under racing conditions.
  • Fully machined and heat-treated. Precision manufacturing ensures perfect fitment with OEM or aftermarket wheels.
  • Available with decorative black finishes to customize your WRX’s style.
  • Anti-corrosion coating provides long-lasting protection against rust and seizing. Sheds water and dirt for easy removal even after harsh driving conditions.
  • Tested to extremes of over 500 hours of salt spray exposure and 3,000 cycles of torquing during development. Proven to withstand all real-world abuse.

So if you’re looking for extended wheel security, durability, and eye-catching style from your Subaru WRX lug nuts, the premium lug nuts from BONOSS are a top choice on the market. Their obsessive engineering and stringent testing result in a product you can stake your wheels’ safety on. Click to check out the full range of BONOSS lug nuts available for your Subaru WRX or STI today.