Correct - The software has to be installed by Dinan certified dealer so I can't remove & sell it to anyone else. The exhaust has to stay on my previous vehicle as the original 4.6 went to a buddy with a 4.4. My vehicle is a 4.6 for which the S2 package was complete. The 4.4 has an additional intake manifold which adds additional hp above what you get in the 4.6 S2 package which is why Dinan charges about $2k more for the 4.4i S2 package. What you see above are the components I could remove and sell. By buying the components I have you can add the additional required exhaust & software and still save over a thousand over what Dinan will charge you new. Make sense?