So I am getting a new exhaust setup for my mustang this spring. However I’m short on cash and am going to keep it cheap. I have two options: spend a crap ton of money and get a full on system for hundreds of dollars, or I can bring it to my buddy and he can cut the cats off the original h pipe that’s on there now, and just put 2.25” flowmaster 40s where the stock mufflers were, rather than buying a complete 2.5” system. My question is, would it sound worse if it’s 2.25” rather than 2.5”? Is it really worth it to throw all my money into the exhaust? I don’t have all the money for that, considering I need a new exhaust for my truck too.