MustangWorks.com : Ford Forums - View Single Post - How much HP will I get out of Mac Underdrive Pullys

03-25-2002, 09:41 AM

I have a set of the mac power pulleys on my 97 stang gt !! It was a good mod and for the cost not a bad mod ! But the aftermarket people that state this and that about the horses you will gain from there mods are lies , I take what ever they say ( like 15 horse gain ) and cut it in half , so you will see like 5 to 7 rwhp maybe !! The more mods that you do the better everything gets !!!

03-25-2002, 09:41 AM	#5
southernstang97 Guest Posts: n/a	mac power pulleys I have a set of the mac power pulleys on my 97 stang gt !! It was a good mod and for the cost not a bad mod ! But the aftermarket people that state this and that about the horses you will gain from there mods are lies , I take what ever they say ( like 15 horse gain ) and cut it in half , so you will see like 5 to 7 rwhp maybe !! The more mods that you do the better everything gets !!!