Been really curious to see what kind of numbers the HKS adds on an 07. Also how much does the HKS weigh vs the stock exhaust? Did a search for this info, but couldnt find anything.

 

In regards to the power, it'll add about the same as the 03-06. In regards to weight it'll be almost exactly the same because the exhaust system hasn't change too much. The only difference is the y-pipe but there isn't a big difference.

 

yea the weight question wasnt specific to 07s, I just wanted to know how much the HKS exhaust weighs vs stock on any model.

 

I can't believe no one has dynoed the most popular exhaust on the 07's yet???

 

dyno for what? It's a catback exhaust. The most you'll ever get is what..3HP? Just figure out if you like the looks and sound and that is all that matters. Forget choosing an exhaust system for the best performance.

 

you should be the first to dyno.. tell us how it turns out

 

yeah, let us know how it turns out. thanks.

 

i getting my hi power for my 07 tuesday hope to have a before and after dyno for it by next weekend

 

nice...i have the HKS on my 07, but i can't really tell any performance gains... no time for dyno's either... you can be the first

 

btw toca how are those gt spec bars workin out for you, i got all 3, but haven't had a chance to install on my 07 yet... did you have to get your alignment adjusted after install?

thanks.

 

they wil be in on thurs so ill let u know most of the parts the list r still shiping or sitting in my living room.

 

Interesting, I have it on mine and I can feel a difference in the higher rpm's. Another guy in my town has an 07 said he could feel it also when I took him for a ride to hear the exhaust. The difference is not night and day however.

Like you, I didn't do the dyno thing... it's either there or not and it's not like I was going to take the exhaust back off if it didn't gain.

John

 

You cant say it is the MOST POPULAR exhaust for the 350Z.

 

well i haven't taken it past 4K rpms yet since it only has 400 miles, but I'm sure there will be a difference once its broken in.

 

That explains a lot then! Get ready to smile soon

 

I've heard from a friend that the HKS is 20 pounds lighter than stock