Due to increased shipping volume from the Covid-19 pandemic, FedEx and UPS are experiencing delivery delays. Please place orders early instead of depending on normal delivery times.

Day Motor Sports is not a shipping carrier and has no control over these delays. Thank you for your understanding.

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DEI

Design Engineering, Inc. is one of the foremost suppliers of thermal tuning product featuring products for racers, street performance enthusiasts, and hobbyists alike. In addition to supplying the performance aftermarket with thermal tuning products, Design Engineering serves the needs of the powersports, marine, industrial and commercial industry markets the world over. Browse DEI automotive products below.

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