I went with the Ford Performance X-pipe and the Borla Type S axle-back mufflers. I would have stayed with the stock mufflers as the sound is great but I could not stand the thin, cheap look of the factory tips. Chargers, Camaros and Vettes all have good looking tips and then there’s the Ford...
Long tube headers are definitely not a good “bang for your buck” modification. I also believe long term reliability(since you mention keeping for a long time to pass on) will be greatly compromised by added power levels the engine was not really designed for.
I have the JLT on the passenger side and the FP on the driver side(I just cut the plastic hoses and used the fittings w/my own tubing).
I don’t drive terribly hard & the passenger side always has 3-4 ounces every oil change. I would recommend one for that side. Otherwise, it’s going straight...
It’s actually a lot ridiculous, but it is the only mod worth any money I put on the car and when I turn it in hopefully I can get back $500 or so. So in my self-justified way of thinking, I’ll only have paid $700 (I got them on a good deal from CJ’s).
I was so disappointed in the cheap look of the Ford exhaust that I upgraded the mufflers to the Borla Type S with the black tips. Corvette, Charger, Challenger, Camaro etc all have rolled tips that make the Mustang’s look really cheap and flimsy.
They ride like stock. If you look at most tire/rim charts, a 9.5” rim is recommended with a minimum of 245 width and maximum of 275 with 255/265 being recommended. The sidewall is flush with the lip of the rim.
They are 9.5” w/ 255/40/20 in the front and 11” w/295/35/20 in the rear. Not sure of the offset, but the rear does stick out a bit further than stock. They are definitely lighter wheels.