what headers would you guys suggest getting for an '04 Z? i have a hayame exhaust with 2.5 inch downpipe, injen CAI, and a skunk 2 plenum spacer?

OR

would you suggest going with high flow cats first?

 

I suggest searching the forum, there are 3.5 years of posts including plenty about headers and high flow cats.

 

If you buy the best, you won't be disappointed.
Each set hand built to order, long-tube, equal length, true merge collectors and will work with stock or aftermarket exhausts/cats/test pipes .

www.crawfordzcar.com

 

Which part are you calling the downpipe? A 2 1/2" 'midpipe' between the Y-pipe and exhaust is not exactly going to set the world on fire.

 

Get shiny headers. They look cool.

 

Are you going to go turbo in the future? If so save the money for that. Or other stuff that might not be useless, like Utec. Which I don't know if those will work with the Turbonetics kit.

 

okay, wow you definately could have typed a type of header in a shorter sentence than what you just typed, either dont post anything or help me out, no need for the smart *** comments

 

^^^ Oh yea, that'll get you lots more help, count on it. Do you think this forum was put here just to serve you? STFU and take it like a man (unless you're a woman).

 

Wow, what an a** hole. I wasn't being smart. I was just trying to help look towards the future so you wouldn't waste money and could spend more efficiently toward your long term goals. What ever it might be. Which I thought might help you out. See if I help you again.

 

i wasnt talking about you i was talking about WIRED 24/7 up there, i thank you for helping me out VIZAGE

 

Why would headers be useless if you are going turbo in the future?

 

A trubo would require a unique exhuast manifold (header) that would have a mount for the turbo.

 

Ah, thanks for the info. I suspected, but it's good to ask anyways. I have a set of headers and can't decide to spend the $300 for the shop to install it or not.

I was confused because looking at the turbonetics kit for the 350Z, I didn't see any headers...

 

Turbonetics is different, it is mounted in front of the engine, so headers wouldn't have to be removed, HOWEVER, headers are not reccommended. For exhaust energy retention, and other reasons, the stock exhaust manifolds are a better choice.

 

OK, Adamsfastz. I retract my statement then. It just seemed that way. Next time just use the quote button to show who you were directing it to. Good look with your search.

 

But with a turbo setup, isn't the most free flowing exhaust the best setup for a turbo? Why would you not want to put in headers that improve more flow? Unless the after market headers don't work the way I think they do...

 

Wired is a moderator, and likes people to look at the top 100 questions thread AND search before making a new thread....like 99% of the rest of the people on this forum do. Nothing to take personal my friend. Myself, I would go with HFC's or test pipes.

 

Not all headers work with the Turbonetics kit. Due to clearence issues. Some have just found it easier to leave on the stock manifolds. Some have took off just the header on the driver side and put back the stock unit to make it work. But yes, the better free flowing exhaust is always better but I don't think it's that big of deal with the Z.

 

would you recommend test pipes or high flow cats? i have read that if you go with the test pipes it could mess up the air/fuel ratio or is that not true?

 

Where do you read this stuff? We need a top 100 myth sticky. Test pipes pollute. Your car may throw up a CEL because the exhaust is no cleaner at the test pipes than it is at the manifold. But it does not mess up your A/F ratio. The two O2 sensors in the exhaust manifold are used to regulate the A/F ratio.

Test pipes have almost zero restriction to exhaust flow. HFCs have some restriction, but typically much less than the OEM cats. Test pipes rasp, unless they are resonated, and even then... Test pipes are louder than HFCs.

Now that this has been repeated for the umpteenth time, you REALLY should read some of the earlier posts here. It has all been covered before.