08+ will require adapters. You *may* have to modify the cowling to fit it in the Jeep.
99-02 manifolds are the worst of the bunch, I can on request port all of these manifolds but tuning is recommended. If $$$$ is tight get a '03-04 manifold, shouldn't require any major mods and will be good for a *few* hp.
Due to my workload, please do not PM me as I do not regularly check my PMs. Thank you :)