exhaust pipe question

[laprodigy001]

i purchased a flowmaster muffler. the inlet and outlet are both 3", should i stick to 3" pipe or use the stock 2 3/4"?

 

[ezdaar]

3" if you can afford it

 

[laprodigy001]

This would only be from the cat back. Would the size still matter?

 

[ezdaar]

O yea.

 

[laprodigy001]

would 3" piping mess with the back pressure?

 

[ezdaar]

Very minor amount. Don't worry about it.