Exhaust Info for order...

[chasxmd]

Hello,

I recently purchased my 2006 F-150 pre-lifted. I know the exhaust was changed and it's a Flowmaster (stamped) but do I need the original part number? I am positive I will not be able to talk to whomever did the mod.. I was looking at the order form and I was hoping to be able to provide this information for ordering my custom tune... any recommendations on what I can do to provide the most amount of information? Does it make much different just to say I have an after market Flowmaster... ?

Thanks!

[cajunboy2208]

For info when getting custom tunes on exhaust they want to know if its si/do or si/so... also the diameter of the pipe where the muffler is and the diameter of the pipe after...