I know we can not expect any real gains from exhaust but is there any exhaust that has proven dyno gains for the 2004 S2000? If even if its a 2 or 3 HP gain I would still like to know about it. Thanks

 

A Search will yield tons of info on 00-03, but there is nothing special about the 2.2 as far as anyone has been able to determine in the 6+months it has been out that would suggest differently.

Mugen, Spugen, Amuse, Fujitsubo, Invidia, Comptech, etc. There are a ton of them. Do a bit of homework and you will find lots of good info from tjhe many knowledgeable people here. That is true of most any topic you will ask (intake, lubes, wheels, tires, etc.).

Welcome by the way.

 

So one thing to consider is doing a baseline dyno with your car stock...that way we can start to see what impact the mods have....if it's more less or the same...I've done my baseline....now I've just got to decide what to do

 

I'm in the same boat...but since I plan on staying stock for AutoX AND this is my daily driver, my options are more limited for exhausts...a loud single pipe would be the way to go if I didn't care about noise, but then I have to drive this thing everyday.