How much HP you gain for replacing the exhaust?
 

Hey, I have the Invidia gemini installed in my Z and I want to know if anyone knows how many horses it should gain?
Any dynos?

Thank you.

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First off welcome OP, Have you looked for dyno videos on youtube? Also I'm pretty sure someone will chime in with your same setup so its a matter of waiting lol.

Thanks :) didnt look for dyno videos I wanted to have an answer by someone that had this experience. And yeah its a matter of time hehe, thanks again:)

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Google is your friend.
site:the370z.com "Invidia Gemini"

Thanks, Very useful .

Type in:

site:the370z.com Invidia Gemini gains

In google.

If that gives you too many false positives, try:
The quotes force Google to look for those two words together and won't match just "Invidia". The plus tells Google that "gains" AND "Invidia Gemini" have to be found on the same page.

Exhausts are more sound adders than HP adders. If you're getting them just for HP you're wasting your money.

Thanks all Ill look more into it.
G37Sam, I Know it gives better sound but it is necessary when you upgrade your car..

Welcome OP.

Its safe to say exhaust gains would be anywhere from 10-20whp.

Idont know how much is stock but my car with just test pipes , y pipe and Pro-1 exhaust dynoed 295.64 dont forget car has stock intakes , no tune no flash 4k miles

Necro bump!