New to It

Hello ......I just got a 07 Mustang GT with a Roush supercharger and it has NOS ......my questions are what stage supercharger set up is in it ......stage 1 or stage 2....can anyone help me with this ??? I purchased it at an estate sell.......No records or anything about this car......carfax is one owner car........the Roush tag read....arb E.O. No. D418......got part number R070000021

I would call Roush and give them the ID number. I would think they have specifics, pending the previous owner did not change anything...ie....s/c pulley swap.


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I'm assuming on the 2007 you have the M90 SC, which were on most Roush's until 2009. There is also an M90 on the 2010 but the intake is reversed to the opposite side, there is no phase 1,2,3 on the M90 only pulley upgrades. The TVS SC with different phases of upgrades did not come in until 2011-present. There is also a TVS model for the 2010 but only for manual transmission. Roush did not start making sc's for automatics until 2008.
As above said contact Roush and they will give you any info you may need. Good luck with the car....
Stock the M90 has 5lbs of boost, with a 2.49 pulley it will increase to between 8-9 lbs.