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Memorial Day & Limited Support Notice
Merchant Automotive will be closed for Memorial Day. Orders placed after Friday, May 23rd at 3 PM EST will ship starting Tuesday, May 27th.
Please note: Phone support will be unavailable Thursday and Friday, May 29th–30th. For assistance, please email support@merchant-automotive.com.

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Performance

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Duramax Performance Parts | Merchant Automotive

Get the best out of your Duramax diesel vehicle, and shop parts and accessories for max performance such digital gauge monitors, turbo pipes, DSP5 switches, back-up cameras, tunings parts, and more.