Originally Posted by jamesb0
Make sure you running synthetic oil in everything and spark plugs ( E3's or Bosch plus-4 ) A 180º thermostat.
The E3 spark plugs and the Bosch+4's are a big waste of money in the Hemi, you will see absolutly no gain in performance. As for the exhaust system choosen flowmasters are one of the worst for performance. They flow horrible but sound good, if ya want free flowing exhaust should have gotten a magnaflow, dynomax or a cherrybomb vortex.
As far as tuners a SC or Diablo will increase both HP and TQ, but the Diablo has been known to wreak havoc with the Rams trannies. Just an FYI do some research on it just so you are well informed of all the possible issues.