The TREMEC Magnum XL 6-speed Transmission is a continuation of the popular Magnum series, which is derived from the OEM TR-6060. This transmission, paired with the PPG synchronized Gearset, and some love from Calimer Transmissions is a beast on the street and track! These are built to order.

Fitment: 2005-2018 Mustang GT, 2015-2020 GT350

What is included?

• A Tremec Magnum XL transmission
• SFI-approved steel bellhousing
• Cross member
• Shifter and shift ball
• Block saver plate & hardware

Calimer Stage 3 Upgrades:

• Professional Tear down & Reassembly
• Bronze shift pads
• Carbon Fiber Synchronizers
• Micro-Polishing internal parts (this reduces friction, increases longevity, and allows for smoother gear engagement.)
• Aftermarket PPG Gearset (synchronized)
• Front Plate Oil Pump Included

This is the best of the best Magnum XL build that we offer while retaining synchronizers. This transmission is streetable, and offers the aftermarket gearset to handle the power at the track. The aftermarket gear kit is 1-4th gear and the transmission will retain factory 5-6th gears. You can add PPG 5-6th gear above in the drop down if preferred.

What are the gear ratios?

1st gear: 2.437

2nd gear 1.611

3rd gear: 1.228

4th Gear: 1.000

Optional 5th Gear: 0.891

Optional 6th Gear: 0.802