If you are only concerned with sound and not performance, and if cost is a major factor, you can look on Amazon. Pretty sure stock crossover is 1 3/4" diameter. You can buy two universal mufflers and lose the huge stock ones with the cats. Or remove crossover also and go 3 into 1. Might have to fabricate some mounts, will probably not bolt right up. Pic is after I changed header, but muffler is from Amazon.