Ok, lets try this one more time under its own thread :

Does anyone have pre and post dyno's for the Nismo headers?

Thanks!

 

OK, I'm gonna bump this...

How about dynos for any headers whatsoever?

 

I wanna see some too!

 

I did buy the Nismo's and had a pre-dyno done before install. I have just not gone back yet to have a post-dyno done yet. I will put it on the board once I get it.

 

FLFIRE, do you have the stock exhaust, then? If so, did you find much of a change in exhaust sound (quality/volume) when you added them? I'm really agonizing over whether to get a catback exhaust vs. just headers (and perhaps high flow cats). I want some hp gains and a wee bit more sound volume (at the same time, i really like the tone of the stock exhaust). Cost doesn't really matter that much.

 

I have the stock exhaust and stock cats. Noticed a very minor increase in volume and a slightly deeper sound. Unless you were in the car everyday, I doubt you would pickup on it.