Quote Originally Posted by Fivefingerdeathpunch View Post
A plog and 3in downpipe should be plenty to run that 3.5.
Not really.

If these cars knock with headers on a 3.5" why would a PLOG/DP combo be any better?

These cars are getting older and more tired...they knock easier and don't like being modded.

On top of that, "Y" car might be able to run those mods...but "X" car can't.

It needs headers and a solid, dialed in tune.