To buy headers or not?

nasm

Great thread, and kindly allow me to ask this question:
A friend of mine, who is a tuner, said that 370z 2014+ no need for short headers, if I put test pipes, because they improved the stock one, and if you want a header go for long tube. That what he said.

Personally, I want the short ones, because it is easy to pass the registration test every year we do. However, I have read a lot about Z1 short headers, and how effective they are. So, now my question is, is it really worth it to go for short headers with test pipes I have with catback or no, it is not worth it? In other way, am I getting with z1 short headers 10+ whp or no?

Many thanks for sharing your experiences. Highly appreciated.
NAS

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Sold: A7 370z 2014 - Stillen Catback - Testpipes - UpRev - Dropin filters - Silicon intake pipes - BC racing coil overs - Z1 Subframe collars - Z1 Engine and Trans Mounts - Oil cooler - CatchCan - Z1 brake lines. Now: I am building another car

projectpanda

Here is a thread of some who had z1 headers and saw gains of 16whp over stock headers, and with retune added additional 3whp or a total gain of 19whp.

https://www.myg37.com/forums/engine-...ml#post3958002

Here is another result comparison of stock vs z1. Moncef from Admin Tuning saw 18whp gain with tuning, so very similar results. He said he runs Tomei headers on his personal cars and also saw gains of 19whp with retuning.

https://www.youtube.com/watch?v=zPv3pRV1kTI

Here is another one of Moncef's video where a customer of his switched to ISR longtube and ISR y pipe from stock headers and tomei y pipe and saw gains of 20whp.

https://www.youtube.com/watch?v=xGz9DjWSMgY

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RHM 75mm TB & ported up/low mani., 3" intakes, Z1 Headers, Motordyne ART pipes, Henko Autolab 3" y pipe & exhaust, Tein MonoSport, SPL F/R arms, endlinks, and tie rods , Eibach sways, Z1 rotors F/R, diff bush., subframe collar, FDF diff brace

nasm

Many thanks for the videos ..
It is true, and because I will need to go for short ones due to the regulations we have here, to keep switching between test pipes and catalyst whenever I do regulation renewal test.

Sent from my SM-S928B using Tapatalk

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Sold: A7 370z 2014 - Stillen Catback - Testpipes - UpRev - Dropin filters - Silicon intake pipes - BC racing coil overs - Z1 Subframe collars - Z1 Engine and Trans Mounts - Oil cooler - CatchCan - Z1 brake lines. Now: I am building another car

OptionZero

Cost/effort of installing the headers is incredibly poor value. Achieving meaningful gains past intake/exhaust requires not just headers but alot more work - E85, cams, supporting parts, and tuning.

Stop at the easy bolt ons and then decide whether you wanto REALLY commit to NA or turbo

and if your goal is learning how to drive on the track, the money is better spent on seat time (hell, better spent on a helmet)

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OptionZero Build Thread

nasm

I totally agree when it comes to track setup, for interior especially the seat. Which is in my list already.

Thanks bro, appreciated

Sent from my SM-S928B using Tapatalk

__________________
Sold: A7 370z 2014 - Stillen Catback - Testpipes - UpRev - Dropin filters - Silicon intake pipes - BC racing coil overs - Z1 Subframe collars - Z1 Engine and Trans Mounts - Oil cooler - CatchCan - Z1 brake lines. Now: I am building another car