headers for 09 R/T manual challenger

[StoneLC]

Originally Posted by BlackRT

yep... and there is a GREAT write up in the August issue of Mopar Action (magazine p.52) about all of the changes to the 5.7L. Cool stuff!! See the cover here http://www.moparaction.com/Next/next.html The same issue also has great info on the coming '09 Challengers.

How is there magazine out for August '08 already?? Can you buy it now?

About the headers... are they going to weigh less? My assumption is that the stock exhaust manifold is cast iron and the headers will be stainless steel, thereby saving weight. Is that correct?

And how much horsepower do you think that the headers alone will add?

Thanks guys (first post!)

[Go Goody]

Headers are only part of the equation...free flow cats and exhaust are probably needed to see any signifigant return. If you free up the exhaust you need to get more air & fuel into the engine too. CAI and a programmer....the list keeps growing...bigger injectors etc.

[425hpChargerSRT8]

you are correct. The high flow cats will help as well. I actually tossed my cats after my cam and heads install. I dont really think the exhaust is too restrictive until you start going into a cam and heads combo, but ur right about the CAI and tuner. You will need that with all of your mods.