A 95-99 cluster will be a direct bolt in. Anything else will require modification. So if you want to use a 95-99 cluster with a tach, its plug and play.
92 Dodge Daytona Iroc R/T: Big turbo, 25psi on 92 octane
03 Neon Srt-4: 1025cc injectors on E85, 25psi spike on e85