I installed an axle back exhaust on my '24 Mustang today. I had alredy done an 'H' pipe, and really wanted the quad tip exhaust, and the axle back was the only way to get it. Borla and Roush axle backs are almost $1,000, this one is from NXT and very nice for $450. The sound is not a lot louder, but very deep and I like it a lot. The only other thing I'll do to this car is a dual cold air intake once they become availble. I priced a Ford rear spoiler from the performance package cars, my price is $2,100!! There is not a lot of aftermarket stuff for them yet.