Underground Dynamics

Underground Dynamics Performance and style to be proud of. We founded Underground Dynamics in 2007 and have continued to develop it because of a common love for cars.

dedicated to bringing the top performance parts and accessories at the most affordable price in the market, not only do we sell parts but we can also get our hands dirty under the hood. We are a lifestyle brand that promotes the custom performance car culture through its parts offerings, resources, and services. We believe that expressing yourself through your car---whether its performance, styling, or both---is special. We aim to be the best resource for that expression.

Shop what your NA needs next: performance parts, suspension and handling, intake and exhaust, wheels and tires, and engi...
09/08/2026

Shop what your NA needs next: performance parts, suspension and handling, intake and exhaust, wheels and tires, and engine upgrades. Built for 1990 to 1997 Miata owners

08/23/2026

Tacoma in the desert.

If your suspension is a vibe, you'll find out fast.

Follow .
Then hit undergrounddynamics.com and build it right.

Comment your year + 2nd/3rd gen. We'll point you at parts that actually fit.

08/23/2026

Eclipse on track. No fluff.

If your aero is cosmetic, you feel it at speed.

Follow .
Then hit undergrounddynamics.com and pick parts that actually fit your chassis.

Comment your platform + year. We’ll point you at the right setup.

08/23/2026

S-chassis at dusk.

Angle is optional.
Fitment isn't.

Follow .
Comment S13 / S14 / S15 + year. We'll point you at parts that actually fit.

08/23/2026

Miata math.

Less weight. More grip.

If it's an NA/NB/NC/ND, we care about two things:
Fitment and function.

Follow .
Comment your chassis + year. We'll point you at parts that actually fit.

08/23/2026

10 seconds. One point.

Grip wins.

Underground Dynamics.
Aero + suspension for builders who care about fitment.

Follow .
Comment your chassis + year. Well point you at parts that actually fit.

08/23/2026

ASMR for people who torque to spec.

TL Type-S details. No talking. Just clicks.

Follow if you build cars instead of excuses.

Comment your chassis + year. I’ll drop parts that actually fit.

08/23/2026

ASMR for people who read torque specs.

Tacoma build details. Clicks. Springs. No talking.

Follow for parts that actually fit.

Comment your platform + year. I’ll tell you what to run.

There's something about a slammed, widebody 350Z in Daytona Blue that just stops you cold. 🔵 Carbon hood, aggressive fro...
08/03/2026

There's something about a slammed, widebody 350Z in Daytona Blue that just stops you cold. 🔵 Carbon hood, aggressive front lip, GT wing, and a set of bronze TE37s sitting flush in a parking garage — this build has zero compromises. What would you do differently, if anything? 🤔

Underground Dynamics

A bagged, wide-body 350Z at golden hour in the streets of LA — this is the kind of build that stops traffic 🔥. Riveted f...
08/02/2026

A bagged, wide-body 350Z at golden hour in the streets of LA — this is the kind of build that stops traffic 🔥. Riveted fenders, carbon aero up front, deep-dish wheels tucked just right. Pure street culture energy. What's the one mod you'd do first on a Z like this? 🖤

Underground Dynamics

Address

Santa Ana, CA
92704

Opening Hours

Monday 9am - 5pm
Tuesday 9am - 5pm
Wednesday 9am - 5pm
Thursday 9am - 5pm
Friday 9am - 5pm
Saturday 9am - 5pm

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