Hey Z1. ETA on those headers?

SPOHN

The gains are about even. With LTH you have to extend the O2 sensors are are a little harder to install. But what isn't on the car.

As of right now you need 350z TP's, Cats, or HDC's. but IMO id only want headers if I could run TP's. the purpose is to get the most free flowing exhaust setup on that end of the car. This really is small beans. And to everyone complaining about the install time. That's old news. Been that way since the 350. Time to learn how to work on your car.

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Jus

So you're saying running these Z1 with test pipes will yeild about the same gains as full long tube headers? And what do you think noise wise? Thanks

SPOHN

I know for a fact. I proved it here along with another forum member named Mike and a couple others. Your exhaust setup will be a factor on how much it helps. Between four of us with all NA breather mods and tune we were pulling between 330 and 349whp. One guy did 326whp on these headers and stock exhaust. My exhaust was to free flowing to get the higher numbers. I had the Greddy.

The sound is perfect. Apt of that again depends on your exhaust. But ultimately it's up to you.

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Jus

The only thing I'm worried about is noise. I'm running the HKS hi power which I would say is pretty free flowing already together with Berks HFC. I'm hoping to gain a little more noise at lower rpms compared to now and more power of course. Deciding between either F.I long tubes or these Z1 headers with test pipes. Just worried that the test pipes would be too loud cause people are saying they're a LOT louder.