Modern Muscle Xtreme

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HP90 A8 Hellcat Performance Transmission Upgrade by MMX
HP90 A8 Hellcat Performance Transmission Upgrade by MMX
Modern Muscle Performance / ModernMuscleXtreme.com is proud to offer this performance upgraded Chrysler HP90 A8 Hellcat transmission....read more
$6,449.00
HP95 A8 Dodge RAM TRX Performance Transmission Upgrade by MMX
HP95 A8 Dodge RAM TRX Performance Transmission Upgrade by MMX
Modern Muscle Performance / ModernMuscleXtreme.com is proud to offer this performance upgraded Chrysler HP95 A8 Dodge RAM TRX...read more
$6,449.00
HP95 A8 Jeep Trackhawk Performance Transmission Upgrade by MMX
HP95 A8 Jeep Trackhawk Performance Transmission Upgrade by MMX
Modern Muscle Performance / ModernMuscleXtreme.com is proud to offer this performance upgraded Chrysler HP95 A8 Jeep Trackhawk...read more
$6,449.00
Kooler KLeen Transmission Line Cleaner and Flush by Doctor Tranny
Kooler KLeen Transmission Line Cleaner and Flush by Doctor Tranny
In an effort to promote regular maintenance for your NAG1 / 722.6 transmission, Modern Muscle Xtreme is proud to offer KOOLER KLEEN....read more
$19.99
MMX 15% Underdrive Hellcat Dampener Accessory Drive Pulley
MMX 15% Underdrive Hellcat Dampener Accessory Drive Pulley
MMX is proud to announce our new 15% underdrive accessory drive pulley for ATI and MMX Harmonic Balancers/Dampeners!  Use less engine...read more
$129.95
MMX 2024 Official T-Shirt - Black
MMX 2024 Official T-Shirt - Black
Represent MMX where ever you go in 2024 with the MMX Official T-Shirt in black! 
$23.95
MMX 2024 Official T-Shirt - Red
MMX 2024 Official T-Shirt - Red
Represent MMX where ever you go in 2024 with the MMX Official T-Shirt in red! 
$23.95
MMX 411CI Engine Build In a Box
MMX 411CI Engine Build In a Box
*PROFESSIONAL INSTALLATION AND CLEARANCE CONFIRMATION REQUIRED*NEW! Introducing our MMX 411 CI Engine Build in a Box! MMX 411 Engine...read more
$5,995.00
MMX 4150 to Hellcat Throttle Body/Air Filter Adapter by MMX
MMX 4150 to Hellcat Throttle Body/Air Filter Adapter by MMX
New Product!Our In house designed and machined 4150 to Hellcat throttle body mount with air filter Adapter is made to allow the use of...read more
$0.00
MMX Agreement Purchase
MMX Agreement Purchase
This is a means to secure your order/build project with Modern Muscle Xtreme. 
$0.00
MMX BIG Logo Gen III HEMI T-Shirt - Black
MMX BIG Logo Gen III HEMI T-Shirt - Black
Represent MMX where ever you go with the MMX BIG Logo Gen III HEMI T-Shirt! 
$23.95
MMX Black and White Trucker Hat - 2021 Edition
MMX Black and White Trucker Hat - 2021 Edition
New for 2021, our embroidered MMX Trucker Hat! This hat has the distinctive MMX logo embroidered with a classic red "X".  Represent your...read more
$19.99
MMX Black Hoodie
MMX Black Hoodie
New for the fall and winter of 2024! Represent MMX where ever you go with our high quality black MMX Hoodie. 
$44.95
MMX Custom Product Payment Method
MMX Custom Product Payment Method
Before using, consult MMX sales staff. 
$0.00
MMX Grey and Red Trucker Hat - 2021 Edition
MMX Grey and Red Trucker Hat - 2021 Edition
New for 2021, our embroidered MMX Trucker Hat! This hat has the distinctive MMX logo embroidered with a classic red "X".  Represent your...read more
$19.99
MMX Hellcat Charger/Challenger 100HP+ Power Package
MMX Hellcat Charger/Challenger 100HP+ Power Package
MMX is Proud to announce our 100 HP+ Power Package for 2015+ Hellcat Challengers, Chargers, Trackawks, and TRX Trucks. As the name...read more
Sale: $1,999.95
MMX Hellcat Map Sensor IAT Sensor Wiring Harness Adapter by MMX
MMX Hellcat Map Sensor IAT Sensor Wiring Harness Adapter by MMX
This custom MMX MAP sensor harness will connect to the Hellcat factory MAP sensor to your 5.7L, 6.1L or 6.4L HEMI vehicle side harness,...read more
$99.95
MMX Hellcat Trackhawk 100HP+ Power Package
MMX Hellcat Trackhawk 100HP+ Power Package
MMX is Proud to announce our 100 HP+ Power Package for Jeep Trackawks! As the name implies, this kit will add an easy, bolt on +100...read more
Sale: $1,999.95
MMX HEMI Adjustable Degree Bushing Kit for VVT Engines
MMX HEMI Adjustable Degree Bushing Kit for VVT Engines
The MMX HEMI Adjustable Degree Bushing Kit for VVT Engines is designed for the installer or end user that wants to adjust the install...read more
$349.95
MMX Remote Tuning Agreement
MMX Remote Tuning Agreement
This Form is Required for All MMX Remote Tuning Services Tied to MMX Products!**This Form is ONLY for Our Camshaft Products That Offer...read more
$0.00
MMX REMOTE TUNING SERVICE
MMX REMOTE TUNING SERVICE
Remote Tuning Agreement ** The Remote Tuning Agreement must be completed and added to your cart as a cost-free item before...read more
Sale: $450.00
MMX RTD HEMI Tuner and Service for MMX Camshaft Packages
MMX RTD HEMI Tuner and Service for MMX Camshaft Packages
MMX RTD Tuning Service!This is optional tuning hardware and service that is offered to our customer who have purchased one of our HEMI...read more
$0.00
MMX TRX 100HP+ Power Package
MMX TRX 100HP+ Power Package
MMX is Proud to announce our 100 HP+ Power Package for TRX trucks! As the name implies, this kit will add an easy, bolt on +100 Wheel HP...read more
Sale: $1,999.95
MMX Vinyl Decal
MMX Vinyl Decal
Show off that MMX is who you choose for your Go Fast parts!Recommended Placement:Quarter WindowsHigh Center WindsheildDecklidLength -...read more
$5.00
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