i dont know if this manifold will fit 1999-onwards. the pre 98 sporty (and the cabrio) has one oxygen sensor- post 99 have two. still....i wish i had one of those. thinking bout replacing the pipe from the cat and back to something beefier. but after purchasing sporty no 2 (its got a nice manifold. come to israel and ill give you the manifold for free, its just sitting in my basement- which is not very healthy) im kind of REALLY low on funds.

2001 sporty. 4 inch lift+ body lift-front lovlells coils+extended forks. reat tj. monroe shocks. full skid plate, auxilary fan. external oil cooler. maxxis 8060 235/75 R15 tires on american racing wheels. trackfinder rear diff lock.
http://www.cardomain.com/ride/3948684/2001-kia-sportage