Ok so new on here , I like all the info I have found so far seems like everyone is good about helping brothers /sisters out . Thoughts / suggestions I finally got my pace setter headers and mid pipe header extensions ( cat deletes) have the Diablo I3 already will I need a custom tune after...

Hey guys. I have a 2005 300c 5.7, only mods I have so far is slp loudmouth1 catback and stage 2 afe intake. Just wondering what long tube headers and what cam to purchase?