HEMI Performance Transmissions

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NAG1 Performance Transmissions
NAG1 Performance Valve Body
Performance Torque Converters
High Torque Transfer Cases
Performance Transmission Maintenance
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2006-2010 Jeep SRT8 High Torque Transfer Case by MMX
2006-2010 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
2012-2018 Jeep SRT8 High Torque Transfer Case by MMX
2012-2018 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
HEMI NAG1 Jeep SRT Transmission - Performance Built Series Stage 1 by MMX
HEMI NAG1 Jeep SRT Transmission - Performance Built Series Stage 1 by MMX
If your HEMI powered Jeep SRT hotrod is pushing 550 ft lbs of torque or less at the crankshaft then this is the transmission for you....read more
$2,949.00
HEMI NAG1 Jeep SRT Transmission - Performance Built Series Stage 2 by MMX
HEMI NAG1 Jeep SRT Transmission - Performance Built Series Stage 2 by MMX
If your HEMI powered Jeep SRT hotrod is pushing between 700 & 1000 FT-Lbs at the crankshaft then this is the transmission for you....read more
$4,849.00
HEMI NAG1 Jeep SRT Transmission - Performance Built Series Stage 3 by MMX
HEMI NAG1 Jeep SRT Transmission - Performance Built Series Stage 3 by MMX
If your HEMI powered Jeep SRT hotrod is pushing between 1000 & 1350 FT-Lbs torque at the crankshaft then this is the transmission...read more
$6,249.00
HEMI NAG1 Transmission - Performance Built Series Stage 1 by MMX
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
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
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
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
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
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
Performance NAG1 Valve Body Modified by MMX
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
1320 HP70 Performance Torque Converter by MOPAR
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
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
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
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
$5,013.95
8HP Sonnax Zip Kit by SunCoast
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
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
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 Demon & Redeye OEM 8HP90 Torque Converter by HHP
8HP90 Demon & Redeye OEM 8HP90 Torque Converter by HHP
High-stall torque converter for 2015+ Hellcat models with 8HP90 auto transmission. This OEM Demon/Redeye converter not only allows a...read more
$999.00
8HP90 Snake Charmer for Dodge / Mopar by SunCoast
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
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
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