blackhorse05

some poeple are saying that the stock headers are preety good for stock, just want your opinion on them and is it worth uprading

757GT

The stock manifolds are mandrel bent but they are definitely not as free flowing as headers. If you want more noise and power from the exhaust, get long tube headers. I personally am probably not going to change them because it costs alot of $ and the gains are not but maybe 10 H.P. I also plan on going boosted at some point so I will save my $. If you are going all motor definetly invest in some, every little bit of power helps.

n4ggs

yeh i agree, headers are really best when combined with other mods. the stock ones are pretty good but if you got cams, intake manifold, bore/ stroke ect then a nice set of headers will give you some big gains. when i get mine, i plan on going with some hot cams that move the powerband higher up (peak torque @ 5k-5.5k rpm) and reworking the valvetrain so i car raise the redline a bit. Then a set of shorty headers will help alot.

StupidTodd

I guess I'm one of those "some people" that have been saying the stock headers are good for stock. Or more so, I've been asking a lot because they look decent.

I'm no mechanical genius or anything, but you look at most engines stock headers, and it's just a manifold that directly dumps into the same chamber, allowing for backpressure problems. This is where a new set of headers should give you the most benefit over stock. (most all the cars I've ever owned, were stock with this type of crappy header)

I figured it would be the same way on my new V6 Stang. Then I opened the hood and actually looked at them. For being "stock" they don't appear to be that bad.

I still plan on upgrading my headers, it is just now much further down on my list. I think for the $, changing to a dual exhaust, or perhaps replacing your catalitc converters for high-flow versions, or maybe even a high flow air filter, would be more beneficial.

Then again, that's just my opinion...