RE: Trak Pak - Different Exhaust?
Trak Pak does indeed exist. Overpowered is correct.
Trak Pak is not really an "option" you can't specifically choose to have Trak Pak in of itself. Trak Pak is an automatically included package if you select the following packages:
[ On an SE ]
NONE
[ On an R/T ]
27F (6-Speed Manual Tremec)
27J (6-Speed Manual Tremec w/Popular Equipment Group)
[ On an SRT8 ]
21X (6-Speed Manual Tremec)
The Trak Pak package is code "DEC" as Overpowered says. You inherently get it if you choose any of the above packages, and you cannot get it if you do not have one of the above packages. Basically, if you select a 6-Speed Manual you get Trak Pak.
This is per the Chrysler document PDF that was leaked on 05/12/2008 as well as per their "buyer's guide" on dodge.com. This information is reinforced on sites like Allpar
Trak Pak consists of HSA (Hill Start Assist), Bright Pedal Covers, a "FULL OFF" ESP switch, and resonators replacing the muffler. -- The post I am trying to find mentioned (as a rumor) what the exhaust diameters were -- so I'm trying to find that. But, Trak Pak definitely exists.