Its not that the Mustang dyno reads lower, it actually reads closer to true power. What do you expect from that little motor?stangman said:man, i was at my shop back home & saw at least 4 n/a 4.6 cars go on the dyno for doing that (keep in mind it's a mustang dyno & reads lower) & none of which gained any less than 16 rwhp. next time i go home to WV i'll have them print my dyno sheets, jsut so you can have your "proof". but seeing the type person you are you'll prolly say they are chopped
16hp? Thats just alittle bit less than the 25hp you claimed earlier.
Well like I said before I gained 85HP from the headers.