Which exhaust give highest Hp-torque for 370z
 

Hello, im planing to buy exhaust for my 370z but I suck in car tech. I have to order exhaust form the internet. My country have not much shop for Z just Hks shop and Stillen dealer. There is no graph no photo and detail for many exhaust system. I really need suggestion hear.

-I also need your recommendation if possible^^
-which exhaust that you put on your 370z
-which one can give the highest HR, right now is it Stillen?
...thx again ^^"

ps. now in Thailand Amuse is very popular for 370z

Top two confirmed power options are Stillen or Fast Intentions, hoping for good results from Berk but I am waiting on receiving mine.

There should be plenty on this subject if you search the forum, heres some anyway:

STILLEN : STILLEN 370Z Dual Exhaust System
RallySportDirect.com - Invidia Nissan 370Z Gemini Titanium Rolled Tip Cat-Back Exhaust
HKS USA HKS Nissan 370Z Product News
VividRacing.com NEW 5Zigen ProRacer Exhaust for 370Z Z34
GReddy SE Catback Exhaust System Spectrum Elite Nissan 370Z 2009-2010 10127962 | Compare Prices and Product Reviews on Become.com
http://www.fastintentions.com/produc...products_id=14
good luck.

Thx u very much, for all of your ans:hello:

could you update when u get the result pleaseee :tiphat:

They are basically stating that if you follow those links above you will be able to see dynos and look at the torque curves so you can find your ideal exhaust.

Most modifications performance-wise in cars scream HP, but don't really push their TQ gains. More than likely this will take a little digging and research on your part.

I like Fast Intentions. More exotic sounding and better looking IMO

Agreed, I definitely gained power up top, but lost TQ down low, I have to keep the rpms between 4-6k to feel the change, so TQ wasnt lost necessarily, just shifted further up the power band. Read the sig for my mods.

Yeah, I'm thinking FI as well, or perhaps the Meisterschaft from GTHaus unless it is too loud for a DD at highway speed (80mph+). Also, at this point I still haven't seen any dyno charts from GTHaus...

Without a gain in tq (at any given rpm) you simply won't see a gain in hp.

I understand how the equation works. I was talking about how you'll see advertising about how much more HP you get from a part, but some times you won't see a Torque statistic at all.

Basically as you open up restrictions on the exhaust you lose tq at the bottom end, and gain HP at the top end.

You have to have a certain amount of restriction in the exhaust to keep your low end torque up.

HP is just a measurement based off torque and RPM. The faster the engine spins, the higher the HP you'll see on your dyno chart (until torque drops off). HP is basically meaningless...torque is the raw data, HP is just a formula based off torque.

Often because there's no gain or even a loss in torque.

It might even out the torque curve slightly at the upper end, resulting in a higher HP level near redline, or even cause a surge of torque at just the right place to cause a spike in HP above stock...and they can claim a HP gain.

exactly...

Thx for sharing your knowledge^^
Is it mean that if I want my car to go faster I need to focus on torque right?
I mean 0-60mph. and Can we increase maximum speed of the car?

Sry for asking stupid question but this is my first sport car^^

One comes with the other, properly.
You are not going to get V8 amounts of torque from the VQ, but you can get a good increase.

The speed limiter on the car can be removed and the car can go a good amount faster given a number of theoreticals based on the cars drag coefficient, the gearing and the amount of torque/HP available at a given RPM.

I'm guessing, but I think the car would top out at around 178-185MPH before the engine simply can't push the car down the road any faster. It has everything to do with the torque at the highest RPMs, because there's a slow dropoff.

As for making the car faster on accelleration - the cheapest method would be to strip the interior and make the car overall lighter.

Next to that, a good exhaust and intake.

If you want to spend some money, get a Twin Turbo Kit installed, and see about getting the rar diff ratio dropped a bit to take advantage of it.


Anyhow, 165MPH (the limiter in the car) isn't fast enough to outrun physics or a police radio, and outside of the Autobahn, I don't know of any place you can legally drive that fast.

Focus on transmission output torque (the tranny simply works as a torque multiplier; same for the final drive ratio). And always focus on high avg numbers. Peak numbers are for marketing.

You can drive as much as your car can go in Thailand If you get caught it cause you 15$ that all ^^ So how can I make remove the limited in can to make 185mph ^^ Is Stillen is the best option here because in my country Stillen price is triple form here. T^T or should I for for HKS instead? Any exhaust is recommend?

:hello:

I lived in Thailand (Udorn) for nearly 3 years. A long time ago, of course. So much has changed now.

I remember the "Bangkok Buses" crusing down a 2-lane highway doing 130-140 KPH.

Yes, they are fucin crazy. They always think that they are on the track-*-

Has there been any confimation of how fast people who have taken the limiter off have gone? I just want to know because I occasionally get weird looks from people who say "It only does 155mph? I figured it was faster than that."

Some person in this board told me it can to 297kph

155mph is the electronic speed limiter required by the US government.
It can be removed, top speed of the car is unknown currently.

i think it will do 170... someone who works at a airport with a ecu reflash needs to take a trip down the runway lol

of course with a good amount of downforce applied, at those speeds the Z would probably take off like a 747!

I am hoping next year to make it to the Texas mile and will have my limiter removed. Though getting to 150 in a mile is actually pretty tough.

As far as HP goes looks like this one's the winner

370Z Supersprint Exhaust - (Style: Catback or Full - Pipe Diameter: 63.5mm - Muffler Tip: 4"- Gains(Full): 29.6 whp/13.5 wtq - Dyno: Link)

http://370zexhaust.com/370z-superspr...ust-on-car.jpg http://370zexhaust.com/370z-supersprint-exhaust.jpg


370Z Exhaust.com - Sound clips, photos + places to buy

Holy necro-thread.

Are you sure those numbers aren't with the stock cats replaced instead of cat-back results? I'd be skeptical of those numbers by the looks of the exhaust underneath.