Hello I have the same car 2005 Mustang GT with a Roush supercharger just installed the Magnum XL 6 speed transmission works really well did the backup wiring sensor as well biggest problem I have since I installed the new transmission is I have a terrible exhaust drone in 6th Gear now what are...
Hello new to The forum but I am going through the same issue with a 2005 Mustang GT I have a Roush supercharger with a magnum XL tremec 6-speed with pypes long tube headers pypes high flow cats X pipe and then MRT exhaust cat backs. 5th gear is not too bad but 6th Gear is definitely a drone...