Found a good deal on some headers off a 350z. Will they fit an '04 G35 Sedan?

Thanks!

 

Yes, they will fit.

-Sean

 

Sweet, Thanks Sean!

 

any 350 will fit in the g35 sedan because they have the same thing inside

 

I strongly discourage headers. The only reason I have my headers is because I got them for $150, and because the installation was free. I had the headers installed when my longblock was replaced. After I received my new longblock and had my headers installed, my car was down about 10hp/10tq across the entire rpm range. Some part of that discrepancy can be attributed to the new engine, but I can't believe that the new engine was down so much power.

Also, I now have no low end torque. I don't mean that I have no torque at 2 grand; I mean right off idle. For example, if I just come off the clutch and I'm basically rolling at idle rpms, if I stab the throttle, nothing happens until about 1200rpms. Fortunately 1st gear is short enough that it's not that big of a deal, but that lack of immediate torque makes crossing busy highways an adventure. And it's not the lightweight flywheel nor the test pipes; this didn't start happening until I got the new engine.

Honestly, I really see no benefit to headers. If you search long enough, you'll find plenty of dyno charts that demonstrate X gain with headers. Well, here's a chart that shows that on this particular car, headers didn't help at all: http://www.my350z.com/forum/showpost...3&postcount=27. In fact, the headers produced some weird effects at various points in the rpm range.

In my case, I've got Ichiba headers. Maybe I would have had different results with a non-knockoff brand, but I have my doubts. For example, here's a thread about Crawford headers(widely regarded as the best for the g/z): https://g35driver.com/forums/showthr...light=crawford. The pictures are no longer available, but the information is still there.

I think the money is better spent towards test pipes and/or a piggyback+tune.

 

I put mine on myself and I got a great deal on them (What Trey paid for them). But I would never put on $700 headers with a $600 installation fee, imho.

 

ya installed my own and got a great deal on them as well 200 but wound never pay that much for them not worth it

 

I found a deal for oem headers of an g35 07 would they fit on my 03 g35?

 

holy revival
yes

 

no.
g35 headers do not fit on g35's

 

he was probably more concerned about it being HR vs DE for fitment issues.

 

HR will not bolt up to a DE without some work. You will need to move a couple studs on the heads to bolt them up, and would need to run HR cats as the flange is different. I have seen guys swap flanges to run DE cats.