APR DL501 S tronic TCU Upgrade for the 4.0 TFSI S6 and S7!
closed for Labor Day
Stage 1 & 2 now available for all new Jetta GLI / Beetle models!
No Fly Zone ARIZONA
DL501 TCU upgrade now available.
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oodSpeed Performance Lab offers the sports and race car enthusiast a full-service solution to your unique, high-performance needs.
Our pursuit in becoming the premier performance facility in the industry is championed by our commitment to the highest standards of ethics, integrity, craftsmanship, and customer satisfaction.
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Performance/racing parts and accessories installation
Performance parts and accessories sales
Research and development
Electrical wiring and design
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GoodSpeed’s Dyno Lab is the premier power testing and tuning facility in Arizona. We have created an ideal test environment for your performance vehicle.
We believe if we are going tune cars to the highest standards we must offer our customers the absolute best equipment and facilities possible.
With this in mind, we have chosen the finest and most accurate dynamometer in the world today, the MAHA LPS-3000.
Learn more about our facility and dyno at