Quote Originally Posted by TLSheff View Post
What mods do you have so far???
BTW the only reason I ask is because unless its a base V6 Charger, your not stock, and you say still modding (implying you have mods already) and your Public Info states a 3800SC Stage 2 kit... so again... assuming...

ZZPerformance - Stage 2 Performance Package #

  • ZZP 3800 CAI with 4" K&N filter
  • ZZP 1.0 pcm
  • 3.4" Modular pulley system ('04+ Grand Prix, & Monte/Impala SS comes with a 3.6" pulley)
  • 658 supercharger belt
  • ZZP 3" bolt in aluminized cat'd downpipe (bolts up to stock or 2.5" catback) with gaskets
  • Autolite 104 spark plugs (set of 6)
  • 180* thermostat and gasket

Note - '04+ Grand Prixs' and 04+ Monte SS/Impala SS are more prone to "Knock Retard", so they come with a larger pulley to keep it safe. All packages require 92+ octane gasoline. If not available, please contact us so we can adjust the pulley size specifically for your car.

This kit will give you about 40 HP.

How to begin mods to your 3800 car:
http://www.zzperformance.com/grand_prix/articles1.php?id=35

**** Now IF this is what you have... it does NOT offer headers in this kit. If you do NOT have headers, you need to take off that 3.4" pulley! Argue with me... you won't be the first. But when you're putting in a new engine, I will say we told you so. Its been proven, you're knocking, you need to fix that while you have an engine to fix. There is a sticky thread on proper proven tried and true modding to a 3800 and the order in which you need to go. ZZP thinks a downpipe will allow a 3.4" but scan your car, unless you have a godly engine that runs like Hercules, your knocking at WOT when your racing those chargers and you will at some point chip your pistons and then... you can build a motor proper.

Just sayin