I don't buy the whole "larger piping will lose power" theory. Most of the guys who post that actually think Backpressure is a good thing.

Consider this, in the 240sx world, 3.0inch Catbacks are the norm, Turbo or N/A. They make more power period, and it has been proven many times, yet you will always have some idiot come in and say "its too big, you'll lose power!"

I've been watching Z's exhuast for a little bit, and it seems that every new generation that comes out has a larger piping diamiter. I say give a Turbo exhaust a shot, the biggest down side would be more noise from the larger piping...

 

so the only downside to getting dual with NA is that its a little heavier? is that so bad? if i happen to change to single exhaust which is the sickest sounding exhaust? i dont want too quiet but i also dont want Super extremely loud lol i was looking at the JIC magic spartan but wasnt too sure on it

 

No tanabe?

You can't beat the tanabe quality

 

i have the nismo exhaust and i have loved it for the 2 years ive had it.

im looking to get a single exit exhaust. Im leaning towards Agency Power Ti...

Anyone here have it? I'm debating whether to get the Agency power or JIC.

 

https://my350z.com/forum/intake-exhaust/261870-intake-exhaust-rules-faq-you-must-read-before-posting-updated-5-21-07-a.html

 

hahah

 

https://my350z.com/forum/intake-exhaust/273703-finally-answered-what-is-the-best-__________-intake-exhaust-headers-etc.html

 

backpressure is detrimental on ALL motors, NA, or forced induction

exhaust velocity is the key - pipe size has little overall affect in reality. The pipe routing, manifold design is far more important in making power from exhaust related mods.

 

Sure there are. I don't think a Greddy Evo TT would be good for N/A not enough backpressure. You would lose alot down low and in the midrange i would think

 

depends what motor you are talking about

a Greddy TT on the 07 works amazingly well

 

Ding! Round 1.

 

I'm not necessarily talking about peak power numbers where as I believe he is. I'm talking about the curve. And I believe that with a wide open say 3" exhaust you would deff lose some bottom end

 

+1, the Greddy EvoTT made decent power on an 07

 

if you get larger piping the exhaust looses velocity which in turn can take longer and more effort to push out. I'm not sure what to believe but this is the argument i hear.

 

just got my JIC spartan type 1 put on today and love it. but if you dont like a loud exhaust this isnt for you. cuz once you get on it and open her up this thing screams!

 

HKS no doubt. Best quality, look, sound, and performance. Only one other exhaust performs just as good on a NA car, and thats the X02 exhaust, which is infact a the knockoff/copy of the HKS, made with lesser quality steel, thinner walls, and no titanium tips. Some like the sound of the XO2 better though. You can get the HKS for 1300 shipped, and the XO2 for about half that.

 

x02 has good gains?

 

XO2 provides the same gains as the HKS, cause its a copy of the HKS, exact same design, made with lesser quality steel amd thinner sidewalls.

 

In theory, every given RPM range would have an optimal piping diameter to maximize flow. If it were a graph, it would be a hill, or upside down bowl. If RPM was the X-axis, the graph would just shift to the left or right, based on piping diameter. This is a highly ideal situation, only taking into consideration the flow rate of a specific pipe diameter. Theoretically if you wanted peak hp, u would want the highest point of the graph to coincide with wherever the car makes peak hp, and if you wanted the most mid-range, have the highest point of the graph coincide with where u make the most torque. I'm not 100% sure this is correct, this is just my understanding of basic R&D.

TK

 

How so?? prove it!!! HKS has smaller piping then Xo2. Please verify your statement