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Veteran Owned and Operated Small Business

About Say When Tuning & Performance

Mopar Muscle. Modern Precision

Welcome to Say When Tuning and Performance.  We Specialize in building, Tuning, and Transforming high performance Mopar Vehicles.  Anything from classic chargers and challengers to modern day Hellcats and Demons.

What We Do

Hemi 440, 426- We build them all.  Naturally aspirated, boosted, or nitrous, we work with you to meet your power needs.


Dyno Tuning & ECU Calibration

Bring your car to us for an in-house dyno tuning session or send us data logs and let us remote tune your vehicle to squeeze those necessary gains out without losing out on the drivability.


Performance Upgrades

We install superchargers, custom cam kits, headers, suspension, brakes, or anything else your ride needs to get down the track. 

Why Choose Us?

At Say When Tuning & Performance, we are committed to providing our customers with exceptional service and quality workmanship. We have 20+ years of Mopar performance experience.  We are a Veteran owned and operated business that was built by enthusiasts for enthusiasts.

Contact Us

We love our customers, so feel free to visit during normal business hours.


Also give us a like on Facebook for new part releases, local events being hosted, and sneak peaks of our current projects.

You can also find us on YouTube posting some of our favorite videos.

Say When Tuning & Performance

13400 Bernard Lane, El Paso, TX, USA

Questions? Email us at orders@saywhentuning.com

Shop Hours

Open today

08:00 – 17:00

Copyright © 2025 Say When Tuning & Performance - All Rights Reserved.


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