Can smooth buddy please tell me I have a 2004 XJ8 and I have a 2008 XJ8 and I was wanting to put the 2008 engine and transmission into my 2004 what all do I need to change I know the ECM is different can I just put the 2008 ECM in my 2004 or I noticed the throttle body looked a little bit bigger in the 2008 do I just need to change my throttle body or my intake or what all do I need to change so it'll run good with what I got. And neither of them are supercharged

 

Expect immo problems. Probably need IDS/SDD. Thus also a hefty power supply and special diag cable.

 

Didn't even read your post. Can't be bothered to figure out where punctuation belongs. Good luck.

And don't expect an apology for this "useless" response. IMHO it's not useless. Maybe your future efforts will be easier to understand, and thus get you more desirable results.