LeFrenchy, thanks for the advice. I'm going to try a cai and tune and we'll all know the results after that.

 

Not sure if you are in a state with emissions regulations like we are in California, but you may want to also consider looking at the exhaust, in particular looking at test pipes to replace the fatcory cats or different piping for the exhaust. We have several shops in our local area that have made specific piping for G's with some noticible HP gains (not much but noticible) as well as a little deeper "growl" as I call it.

 

I know the HFC is a gain of 15hp to the wheels. I did a before and after dyno before my tune. I hear Test pipes have a higher gain.

 

It was dyno'd right before and after HFC install and you gained 15rwhp (dynopack)? Peak or under the curve?

I added ResTP's after Dynotuning at 265rwhp (dynojet 224)...no idea what i gained if any.

 

Sorry blue, I just don't buy it.

 

I have a 08 g35s... Can some one give a a direct link to the uprev tune they used.. Itried searching it and I cant seem to figure out wichone is it???????

 

I see all the big guns are answering your questions... no need for my info

 

How is that Megan Y-Pipe working out fo you? Is it worth it by itself? I just put in long tube headers with stock exhaust and the Y-pipe could be my last mod.

 

to be honest with you it was good at the beginning but I was forced to take it off because the flex areas deteriorated pretty quick and upon any type of accelleration you would hear alot of unwanted noise... It's worked for some without any issues and not as great for other like me lol.

 

Did you sell it?