Only 2001+ 3 plug 8Vs have the revised oil filter and close coupled CAT. The Raceland 4-1, Supersprint 4-2-1 and Piper 4-1 are all direct fit for this engine. However, you can convert to the spin on oil filter and use a Raceland 4-2-1 if you wish - there's a guide with part numbers on this forum.
The black top and earlier single tops all had the spin on oil filter as standard.