Paradox Performance

Paradox Performance Porsche suspension upgrades, engineering and tuning for the street, track, and everywhere in between.
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Paradox Performance was founded by former pro racing chassis engineer technician, Joey Seely. Joey who has multiple championships as well as wins at 12hrs of Sebring, Petit Le Mans and runner up at the 24hrs of Le Mans. His other accomplishments include a class win at the 2015 Pikes Peak International Hill Climb and an overall win at 25hrs of Thunder Hill. Bringing all of his racing experience to

every customers street or track builds he focuses on the dynamic chassis setup to create a one of a kind experience.

991/981/718 Strut Tower Reinforcements are back in stock and selling as fast as they always do BUT we’re just as excited...
06/15/2026

991/981/718 Strut Tower Reinforcements are back in stock and selling as fast as they always do BUT we’re just as excited to announce the arrival of our 992 Carrera/Turbo and 992 GT3/RS Front Strut Tower Reinforcements! Like the earlier versions the bar ties down to the frame rails but on the 992 they also tie the towers down to the frame rails inside the fender. It doesn’t get any stronger than this!

Putting the sportscar back into the extremely civilized 992 Turbo S with some much needed chassis upgrades and tuning. P...
06/12/2026

Putting the sportscar back into the extremely civilized 992 Turbo S with some much needed chassis upgrades and tuning. Paradox Performance spec V4s with upgraded GT3 style adjustable rear lower control arms, spherical bearing inserts for the uprights, and the all new 992 front strut tower reinforcement!

Sometimes even the coolest limited production builds need a little extra tweaking. The Gemballa Marsien really impressed...
06/09/2026

Sometimes even the coolest limited production builds need a little extra tweaking. The Gemballa Marsien really impressed us with the level of engineering that went into the custom off-road suspension design. Double A-arm front with billet arms and uprights and completely revised long travel rear arms and billet uprights are legit. They just made a lot of noise. We diagnosed the source and revised the suspension bushings for a quiet ride. Then we took our time to measure for a proper off-road wheel and tire package. 2” smaller rims and 1” taller tires means 3” of increased sidewall 🤘🏽

Almost 40 years apart. Both timeless.
06/04/2026

Almost 40 years apart. Both timeless.

Being first is in his blood! updated the branding on his 997 GT3 Rally Cup within hours of our announcement yesterday 🤩
05/15/2026

Being first is in his blood! updated the branding on his 997 GT3 Rally Cup within hours of our announcement yesterday 🤩

05/14/2026

The E-Motion Engineering team is rebranding as Paradox Performance!

While our name is changing, the foundation of this company is not. Same ownership. Same team. Same vision. Same obsession with building exceptional vehicles.

This rebrand represents the evolution of where we’re headed and the future we’ve been building toward.

Over the coming weeks, you’ll begin seeing updates across our branding, website, email communications, and social platforms as we make the transition official.

To everyone who has supported E-Motion Engineering over the years: thank you. You helped build this foundation, and we are incredibly excited to share with you what comes next.

Welcome to Paradox Performance.

A few of our builds that made an appearance this weekend at
04/27/2026

A few of our builds that made an appearance this weekend at

The 90s called! 😎Timeless design and legendary performance that is about to get even better….
11/25/2025

The 90s called! 😎
Timeless design and legendary performance that is about to get even better….

11/17/2025

Cup car ASMR

Address

3189 Red Hill Avenue, Suite C
Costa Mesa, CA
92626

Opening Hours

Monday 9am - 5pm
Tuesday 9am - 5pm
Wednesday 9am - 5pm
Thursday 9am - 5pm
Friday 9am - 12:30pm
2:30pm - 5pm

Telephone

+19492706303

Website

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