Aggressive Rear End: 21" Bumper Lip Diffuser/Valence – Universal Fit For Mazda, Subaru & More – Textured Black ABS, Made In USA – SteelCase

Want to give the rear of your car a more aggressive, track-ready look?

This 21-inch rear bumper diffuser from SteelCase is a solid choice.

It's a universal fit – measure your side rear bumper before buying to make sure it works for your Mazda, Subaru, or whatever you're driving.

Each piece is about 21 inches long, 6-7 inches wide, and 2-3 inches tall.

Made in the USA from textured black ABS plastic.

The kit includes one pair of diffusers, mounting screws, and double-sided tape.

Heads-up: installation will likely require drilling, trimming, and cutting for a perfect fit.

It's a performance custom part with a 30-day warranty.

Add some downforce style to your ride.