MMX is Powered by Modern Muscle Performance

Call Today: 276.666.1934

Over 40 Years of HEMI Experience!

Home● About● My Account● Contact● Events

MMX Custom Product Payment Method

Modern Muscle Xtreme Internation Order Notice

International Order Notice:
International orders are required to be paid by money order or bank transfer. Please call or email for more information before placing your order. International import taxes and duties are the responsibility of the purchaser and are not the responsibility of Modern Muscle Performance / Modernmusclextreme.com.

Modern Muscle Performance offers in-house installation as well as other HEMI hotrod related services!

ModernMuscleXtreme.com Accepts:
Modern Muscle Performance Proudly Accepts Paypal

Modern Muscle Performance Proudly Accepts Visa, Mastercard, and Discover Credit Cards

Modern Muscle Performance Proudly Affirm as a Payment Method

We Currently Do Not Accept American Express.

Modern Muscle Xtreme BBB Business Review

Hellcat Supercharger Boost Controller by MMX!

Supercharger Boost Controllers by MMX

Hellcat Supercharger Boost Controller by MMX

Introducing the MMX Hellcat Supercharger Bypass Valve Controller!Our latest innovation gives you full control over the Hellcat...read more

View Details

$399.95

Procharger Boost Controller Kit by MMX

Introducing the MMX Procharger Supercharger Bypass Valve Controller!Our latest innovation gives you full control over the Procharger...read more

View Details

$499.95

International Order Notice:
First time international Modern Muscle Xtreme customers purchasing product in excess of $500.00 are required to pay by money order or bank transfer. Please call or email for more information before placing your order.

Modern Muscle Performance offers in-house installation as well as other HEMI hotrod related services!

ModernMuscleXtreme.com Accepts:
Modern Muscle Performance Proudly Accepts Paypal

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.