Are there any good aftermarket headers out there PROVEN to get good gains in the short run and still not be restrictive in the long run? I've heard bad things about most headers if you are planning for over 350 WHP, and I want to keep the power potential completely open.

 

pacesetter is your best bet.

 

No one can really say, because people on this site never dyno after they install a new mod.

So to answer your question there are no proven power numbers, but any properly sized header should help free up some flow.

 

The Vibrant header has been dyno confirmed to produce better gains than most other LSJ headers. The Pacesetter requires a custom DP, which is gay! lol

 

Most things in this world start out as custom. How is that gay?

 

OTTP longtube?

 

dyno proof?

 

There is none, hence the '?'

I'm happy enough with my Clear Image and Magnaflow setup. The OP's question is similar to asking if UFO's, Zombies, Bigfoot, and the Loch Ness Monster exist.

 

i would say pacesetter as well. i cant remember the site that makes the DP for it tho

 

what headers would be good for gmpp catback sorry for side busting just curious and catless dp

 

ZZP Midlength.

Just make sure you use a donut gasket and not their piece of **** 2 bolt gasket or you'll have leaks.

Pacesetter requires fabrication iirc, the ZZP you can just bolt on and be done with it.

Most children don't, even though it's possible.

 

Vibrant for performance and Vortex noodle header for good sound only. Choose lol

 

It wouldn't be this way if people would actually get dyno numbers from their mods. Most people just half ass it by slapping it on and calling it good. Sorry, even though the Stage 2 comes with a reflash, I'm still getting it tuned for max power potential once I get it. Also because I want to see what it can throw down after that.

 

If you are just going to custom tune, don't waste your time/money on a GM kit.

 

true ^^^