Let's see your rolling a Saleen clone, figured if you got the coin for that you go the coin for the install. Also keep in mind the midpipe has to come down starter out, if you got LT they need to come off, (which means basically taking the whole frontend apart) shifter (no biggie but still) resurface flywheel and reverse all the above. Plus I'm forgetting something I know. $650 high maybe, don't know going rate in your area but totally out of the ballpark nope. Of course you could just do it yourself.