I know i am beating a dead horse with this question but I need some help on finding a shorty header based on the best quality, fitment and performance of the header? I have no plans on installing a downpipe.

 

honestly, if you don't plan on ever upgrading your downpipe, i would leave it stock. what's the point of a nice free-flowing manifold that's just getting restricted by they crap stock downpipe.

 

why won't you upgrade your downpipe.. I like the vibrant heaader.. it comes with a downpipe with a high flow cat.

 

or zzp header/dp combo

 

I still felt decent gains with a header and the stock downpipe, but it still helps out a ton if you replace it. I'd recommend Cobalt-Addiction V2, it looks like the built is comparable to any other shorty header with a great competitive price. I had a CA V1 and it created some noticeable gains w/ and expecially without stock downpipe.

 

you can try the header from Cobalt addiction

 

I would go zzp. But like others have said your not really going to see a benefiet unless you switch out the dp also.

 

If i were to get an header and dp what options do i have with a 2.5" dp because i have the gmpp exhaust and which ones are not raspy and are not overly load cause the town i live in the cops hate loud exhaust and i have been warned with the gmpp exhaust. My hp goals are about 260 to the wheels.