Diesel350

iTrader: (6)

This exhaust is just amazing in how it sounds and the way it was constructed. Driving around cruising it's same as stock but when you punch it, it has this exotic sound to it. Like many other HKS owners I feel like this exhaust is worth every penny. I did not get a chance to weigh this system but as you can see the stock exhaust is very restrictive. We weighed the stock exhaust and it was 60 pounds.

Here are some short video clips. These are with my Canon Camera so I not sure of the quality but my buddy had a pretty nice camera that is probably better quality and I will be posting those soon too.
http://media.putfile.com/HKS-2-
http://media.putfile.com/HKS-1
http://media.putfile.com/HKS-3

Roggan

Wow man, now thats more like it!! Propper sound clips!!

Cant wait to get mine installed!!!!

I was surprised how light the HKS system is, i was expecting it to be heavier with the dual mufflers on each side, but it wasent heavy at all!

What do you think, is it lighter then the stock single pipe system? The stock rear muffler looks really heavy...

/Roger

Diesel350

iTrader: (6)

From what I heard a member here weighed the HKS exhaust and it was about 15- 20 lbs lighter than stock.

GQ 350z

iTrader: (13)

*omg* I am in love. Seriously thanks so much for this.

sokudo9l6

iTrader: (2)

very very nice.

onebadfyvo

iTrader: (1)

I hardly turn on the radio since my HKS install. Great sound, great looks, and a ton of compliments.

hitop

nice

Roggan

At which RPM does the exhaust peak in volume?

Most exhaust incl the stock peaks at ~5k

/Roger

Diesel350

iTrader: (6)

Yep 5k

davidv

iTrader: (2)

Thanks for the photos. I did not realize that HKS Exhaust is a dual exhaust. Sharp. Nice choice.

kalima275Z

iTrader: (4)

I can't wait to get this thing. It looks awesome too. I wonder how it will sound with new manifold and CAI from...MUWAHAHAHA!!!

Zivman

iTrader: (19)

The more I see/hear this exhaust, the less I like it. Sounds just OK and looks fine, but not for 1500 bucks. I bet the new injen will sound pretty close to the same, probably a bit louder, have basically the same look and for 500 bucks less.

Will Pwr

iTrader: (4)

The Injen one is no way comparable to the HKS, especially from an engineering and performance stand point. You can first start off at the size and quality of the piping, then you can move on to the overall construction and the welds. The new Injen might have a similar look since they now followed-suit and put Ti tips, but no way is it even close to equal of a product.....dont forget about the resonance tubes on the HKS either...they are there for a reason.

ActionJackson

iTrader: (1)

I'd still rather get the Veilside Titanium over this one for its sound after hearing these sound clips. Exhaust does look nice though.

Zivman

iTrader: (19)

I am talking about the new upcoming injen. The two exhausts look nearly identical. They both incorporate the H-pipe, both have the same 2.5" piping, both have Ti tips, both have same style mufflers, minus the extra canister on the HKS. All I am saying, is that the HKS IMO isn't worth 1500 bucks. The Ti tips are bolted on, which IMO looks cheap. and it doesn't sound anything more than OK.

Greddy, Nismo, possibly the 3rd gen Injen exhaust all at least as good of choices IMO and all cost a good 500-800 bucks less

Zivman

iTrader: (19)

Those tubes are there to control exhaust note and also I would guess them to increase back pressure.

I absolutely HATE the sound of the 2nd gen injen, but quality wise, the welds, flanges, etc were nice. Had no issue with them. The flanges were solid and thick, nice uniform Tig welds on both sides.

Will Pwr

iTrader: (4)

Injen is trying to immulate the design for a reason...the do look similar, but if you look closely at it, there are substantial differences...

The amount of bends in the piping which affect exhaust flow dynamics...

The use of slip-joint clamps versus flanged ends.

Larger flex joints in the front section.

Not to mention made inhouse by a manufactuer that is a true tuner and not farmed out to another overseas company to be made.

Sorry for the rant....I know there are good exhausts are lower in cost, such as the Nismo (which I do recommend for the price point)....but it just gets me when the injen is directly compared to the HKS

Will Pwr

iTrader: (4)

Yeah, they did step up quality in thier later models...which is a good thing..Im not trying to knock the exhaust..its good...there are far worst ones and better ones too.....

I work with exhausts all day long, so I guess Im being too critical about the dynamics of each and how comparable one is to another haha

Diesel350

iTrader: (6)

Exactly. Those tubes are there to make the exhaust note sound even better. If you have not hear this exhaust in person you need to because sound clips do not do this exhaust justice. By the way how do you know how the 3rd generation Injen sounds like? It will most likely sound just like the 2nd generation, a fart can.

And lets not even talk about gains. Not even comparable.

Zivman

iTrader: (19)

I never said the exhaust would sound the same, only that I guess it would sound similar but louder. Adding the H-pipe will do wonders to the note as well as the larger piping. On top of that, I am sure Injen revised the mufflers/resonators a bit.

I don't have problems with using slip joints in areas as long as it is done right. For example, the magnaflow slip joints on my brothers F-150 suck. The APR slip joint setup on an A4 1.8T or a GHL setup on my buddies mazda are VERY nice.

I am not saying the HKS isn't a better exhaust, just not 500-800 bucks better than the others listed.

Also, to my ears, the HKS doesn't sound like anything special. We all agree the 2nd gen Injen is Horrible, but in comparison to my APS, my former greddy, the stock setup with test pipes, nismo, and others, I would pick any of those over the HKS strictly in terms of exhaust note