This is HKS’s newest exhaust for the 350Z. It is part of the Hi-Power line. This version is a full dual Hi-Power Ti (Ti for titanium tips). I will explain how this relates to the G35 Coupe in a second. The system includes the “Y” pipe, but in this system it is more of an “H” pipe because each bank is kept independent in “true dual” fashion but are joined by a balance tube. I guess it still looks like a Y but whatever, you’ll understand when you see my pictures. The H pipe has flex pipes and resonators. After the H you get the dual intermediate pipe and the two rear sections. As you will see in the pictures it is full SUS304 stainless steel front to back with the exception of the titanium tips which have that cool looking heat discoloration. The piping is all mandrel bent and is 60mm (2.36”) diameter. The muffler diameter is 130mm (5.11”) and the tip diameter is 120mm (4.72”). Because it is full stainless it is under HKS’s 4 year warranty program. A key feature of this system is that it complies with the California vehicle code and is compliant with the 95DB sound pressure level limit. So if you get cited you can have it certified at one of those referee stations to be street legal. Another cool feature on the tips is that they designed them to be adjustable. They will fit flush on the stock bumper but can be adjusted out to match with a body kit that may extend the rear bumper! That’s why the tips have those bolts on them.

The most unique feature of course are those tuned resonators that are plumbed in before the mufflers. They made it possible to have a true dual system while passing the afore mentioned 95DB limit. They were also specifically designed to reduce the drone and rasp the VQ35 has between 2000 to 3000 RPM and I think they look cool. It just looks like something cool is going on there. For those of you who may not like that look, not to worry, as you will see on the pictures they tuck under the car and you can’t see them but I’m sure you will still appreciate their functionality. Ok, here is the sweetest part, average HP gains in testing with no other mods was 12 at the wheels. I think most of you experienced guys know that HKS doesn’t mess around and they are well respected. They aren’t known for inflating #’s, in fact as I stated on my Legamax exhaust post they usually report an average to be on the safe side, as to not disappoint customers. They haven’t been around for over 30 years for nothing. Price has yet to be released and ETA is around end of June for the 350Z. A friend of mine there says if the initial sales go well then they will make a version with a longer intermediate pipe and specific for the G35 Coupe.
If any of you guys are like me and are already drooling make sure to give the HKS sales department a call, ask some questions and let them know you would be interested in purchasing one should they decided to make it.
PICTURES!

 

[QUOTE]Originally posted by Gabe35Coupe
[B]This is HKS’s newest exhaust for the 350Z.

I was just wondering if I missed it in ur post, but when is it set for release? do you happen to know how much? This is the kind of exhuast I have been waiting for. A true dual exhuast from a well known "Japanese" maker. I was also waiting for JIC to come out with theres but I spoke to one of the Reps from JIC and they had told me that its going to be a long time before they come out with the Bullet dual exhaust. (like the one on the S2000 or 300zX). So im still patiently waiting. Please any info will be great. thanks again.

 

 

Thats purty!

 

Regarding ETA. The lastest info I got is that the Z version had a delay so August would be the earliest...most likely will be Sept. HKS wants to do a G version now from the interst people have expressed but it will be after the Z verion.

 

looks nice, do you have a sound sample?

how much weight does this save in ss/Ti form?