Sales Tax: Sales tax at Modern Muscle Xtreme (MMX) and its subsidiaries is based on State and local requirements. For more information, please reference our Sales Tax Policy page.

MMX MMX-SNGL-WK2/WD Drop-In Plug & Play Single Fuel Pump Module for 11-21 Jeep Grand Cherokee 5.7L, SRT8 6.4L, SRT 392, 11-23 Durango R/T 5.7L & SRT 392 HEMI $799.95

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Here at MMX / Modern Muscle Xtreme we only sell the HEMI performance parts you need to take your hot rod to that next level of competition.

Jun 12, 2026 · Modern Muscle Xtreme, Martinsville. 37,996 likes · 688 talking about this · 560 were here. MMX is your one stop shop for all things HEMI related!

In an effort to focus on providing customers with more performance based Jeep Wrangler and Gladiator products and solutions, we have moved all our best offerings over to our main performance site.

MMX was established in 2015 with ultra-high-performance sports wheel brand positioning. MMX strives to provide safe hub upgrades. MMX has created a higher standard of quality system called SSDP , …

Explore the full range of MMX Performance aftermarket parts and upgrades. Designed and engineered in the United Kingdom, our products combine precision engineering, premium materials and …

Go turbo with awesome truck upgrades and try to climb to the top of the leaderboard in this crazy MMX racing game that will test your driving skills to the limit!

MMX is a processor supplementary capability that is supported on IA-32 processors by Intel and other vendors as of 1997. AMD also added MMX instruction set in its K6 processor.