HEMI Performance Transmissions

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HEMI NAG1 Transmission - Performance Built Series Stage 1 by MMX
If your HEMI powered hotrod is pushing 550 ft lbs of torque or less at the crankshaft then this is the transmission for you. The Modern...read more
$2,949.00
HEMI NAG1 Transmission - Performance Built Series Stage 2 by MMX
If your HEMI powered hotrod is pushing between 700 & 1000 FT-Lbs at the crankshaft then this is the transmission for you. The Modern...read more
$4,849.00
HEMI NAG1 Transmission - Performance Built Series Stage 3 by MMX
If your HEMI powered hotrod is pushing between 1000 & 1350 FT-Lbs torque at the crankshaft then this is the transmission for you....read more
$6,249.00
HP70 A8 Performance Jeep SRT Transmission Upgrade for the Jeep SRT8 by MMX
Modern Muscle Performance / ModernMuscleXtreme.com is proud to offer this performance upgraded Chrysler HP70 A8 transmission. Through...read more
$5,599.00
HP70 A8 Performance Transmission Upgrade by MMX
Modern Muscle Performance / ModernMuscleXtreme.com is proud to offer this performance upgraded Chrysler HP70 A8 transmission. Through...read more
$5,599.00
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
Jeep SRT8 High Torque Transfer Case by MMX
This Jeep SRT8 Transfer Case by MMX has proven itself over and over again to reliably deliver the power from your HEMI to all 4 wheels....read more
$2,650.00
Performance NAG1 Valve Body Modified by MMX
The MMX performance valve body was designed by using a fully operational, test NAG1 that monitored all clutch pressures, torque...read more
$850.00
10" HP Series 8HP70 Torque Converter by Circle D Specialties
There could be a 2-3 week lead time for this product!The HP series 10" 8HP70 converter is based on the factory core with some...read more
$1,499.00
11" HP Series 545/65RFE Torque Converter by Circle D Specialties
There could be a 2-3 week lead time for this product!Awesome converter for your 5 and 6 speed Ram truck! Based on the factory core with...read more
$749.00
11" HP Series NAG1 Torque Converter by Circle D Specialties
There could be a 2-3 week lead time for this product!The HP series 11" Nag converter is based on the factory core with some adjustments...read more
$749.00
1320 HP70 Performance Torque Converter by MOPAR
MOPAR's 1320 performance torque converter featuring a 2350 stall speed with a 18 percent increased torque multiplication. 
Sale: $899.99
160 Degree Thermostat Kit for HP8 Transmission Series by MMX
With the ever increasing power of the Dodge platforms whatever can be done to extend the life of the HP8 transmissions becomes a...read more
Sale: $439.95
180 Degree Thermostat Kit for HP8 Transmission Series by MMX
With the ever increasing power of the Dodge platforms whatever can be done to extend the life of the HP8 transmissions becomes a...read more
Sale: $419.95
4x Four-Speed™ Transmission for Chrysler Gen III Hemi, Electronic 4L80E-Based
TCI® 4x Four-Speed™ Auto Transmissions enable the use of a 4L80E transmission with non-GM applications.This 4L80E-based...read more
$4,409.95
8HP Sonnax Zip Kit by SunCoast
Symptoms:Broken partsDelayed engagementExcess heatFirm shiftsHarsh engagementCause:Loss of oil pressure due to worn components in...read more
$149.00
8HP Valve Body Plate Assembly by SunCoast
This is a new 8HP70/90 valve body separator plate. 
$45.00
8HP70 Snake Charmer for Dodge / Mopar by SunCoast
**NOTE: TORQUE CONVERTER CORE MUST BE SENT PRIOR TO BUILDING**Chrysler initially received the 8HP 8-speed automatic transmissions from...read more
$1,395.00
8HP90 Snake Charmer for Dodge / Mopar by SunCoast
**NOTE: TORQUE CONVERTER CORE MUST BE SENT PRIOR TO BUILDING**Chrysler initially received the 8HP 8-speed automatic transmissions from...read more
$1,395.00
8HP90/95 Billet E-Clutch Drum for  Dodge / Mopar by SunCoast
Features & Benefits:Manufactured from 7075-T6 billet aluminum alloyNew oil channels machined in hub feed for improved critical...read more
$1,200.00
HEMI Flexplate SFI by ATI
ATI Superplates are neutral balanced for use in internally balanced engines and exceed SFI 29.1 & 29.2 ratings!ATI Flexplates are...read more
$219.95
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
NAG 1 722.6 Category 1 Upgraded Dodge / Mopar Torque Converter by SunCoast
The 722.6 Mercedes-Benz 5G Tronic (or in Chrysler applications, this transmission is identified as the "New Automatic Gearbox Generation...read more
$995.00
NAG 1 722.6 Pro-Loc Zero-Drag Dodge / Mopar Torque Converter by SunCoast
The 722.6 Mercedes-Benz 5G Tronic (or in Chrysler applications, this transmission is identified as the "New Automatic Gearbox Generation...read more
$1,195.00
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