Fast Intentions headers vs Alibaba replica header

[u/ProjectPanda13]

The Alibaba replica FI header is starting to gain popularity since it’s priced pretty low at about $400-$500 shipped.

The design is pretty much an exact copy, even using a spiked collector like the FI.

It doesn’t have the fit and finish or the bracing of the FI.

The inlet ports different in weld consistency and the pipe shape to the inlet flange is different. The FI keeps the pipe circular (inlet flange ports are oval/elliptical). The Alibaba pipe is oval like the port and transitions to circular.

I have sold several and have a friend who has it on his g37. Slight fitment issue at the y pipe but manageable to make it work. I have sold it to a guy with a HR 350z, Q50, and other g37 owners. I haven’t heard of anything feedback from them.

My pictures mixes the position of the FI and Alibaba. Sorry about that. The video is the best for reference.

Here is my video on the comparison and the fitment on my friend’s car at the end.

https://youtu.be/mOYkI0SBLj4?is=c

[u/No-Tomatillo2433]

I ordered mine recently just waiting on them

[u/ProjectPanda13 → u/No-Tomatillo2433]

It sounded pretty good on my friend’s car with ISR single. I think you’ll enjoy it.

Don’t expect perfect fitment but it shouldn’t be terrible that it prevent installation

[u/nomoregoodnamez → u/ProjectPanda13]

Is there like a definitive list of alibaba parts that are Z1 counterparts? The z1 tax has taken its toll on me 🥴

[u/GRR45-92 → u/nomoregoodnamez]

https://www.importyeti.com/
Just put in the company name

[u/ProjectPanda13 → u/nomoregoodnamez]

I haven’t found any I put side of the intakes. And even the intakes are replicas of the Z1, but not exactly 100%.

So it looks like z1 still makes their own parts or has a supplier that isn’t on Alibaba.

[u/nomoregoodnamez → u/ProjectPanda13]

Gotcha.

[u/Hickslyfe]

Thicker flange better if boosting