I am going to be constructing a custom y-pipe with the help of a local exhaust shop. I have a 2000cc engine and from what I'm reading online, I should use no bigger than 2.25" pipes for that cc rating.
I'm not sure how that stillen or other y-pipes are constructed. Are the pipes coming off the manifold narrower than the flex joint and those leaving the flex joint??

Here's what I'm thinking...the exhaust stream leaving each side of the V would have lower volume than the combined stream at the flex joint. Therefore to keep the stream velocity up before the flex joint a narrower pipe should be used. In my case I am thinking about using 2" pipes before the flex and 2.25" flex. What do you all think?? 2.5" all the way or 2"->2.25 or 2"->2.5" or 2.25"->2.5"

 

Why don't you just buy a budget? is cheaper, and its great!

 

Ah, 2000cc engine? Which V6 has only 2000cc? Any why are you going to custom make a Y? It will cost more to do that vs buying a quality premade product from Budget, Cattman, Warpspeed, etc........

 

I live in the Caribbean and the car is a Japan import. The import taxes on the 2000cc are about 1US per cc and on the 3000cc the taxes are about 5US per cc so you can see why I have a 2000cc. Our damn government does that separate the rich from the poor .

We actually have two cars an SE and GXE....oh and they're not called Maxima in Japan but Cefiro.
I think the SE has the transmission where the gears change fast and hard and the GXE is smooth. Right now I'm modifing the GXE since its a 97 and the SE is a 95. I think I will probably swap transmission later on.

The custom build y-pipe is costing me about $85-$90US

 

Here is a pic of my budget y. Looks to stay pretty even in diamater all the way through.

 

Well I'm gonna experiment and use 2" before and 2.25" for the flex. According to my theory that should give me a higher low end torque than using 2.25" or 2.5" throughout. Too bad I won't be able to dyno test it. By the way, how much does it cost to dyno test in the US??

 

I've paid like 65 dollars for quite a few runs at a local dyno place here in Massachusetts...

How much different is the Cefiro vs. the American version of the Maxima?

 

I'll get my cousin's digital camera borrowed tomorrow and post up some pics...the intake manifold is alot different...not sure if better or worst. I think the Cefiro looks better because of the differences in the bumpers but that's just my opinion. The Maxima's bumpers are more rounded I believe.
It also comes with the automatic mode switch as a standard feature ...cattman has that upgrade for like $470USThe switch has 3 modes...Power,Snow and default. Power is cool!!! When it is set to Power and you accelerate hard the rpm goes redline before changing the gear...kinda like driving manual In Snow mode the car never uses first gear.
These are some pics that I found online :

 

ugly rear.

 

This is a new a refreshing post. I've never seen anybody post from outside the US or Canada. Welcome to the .Org. Good luck with you car and y pipe

 

Does the intake manifold look like this?



(without the Supercharger piping or Nissan Logo)

 

stillin pipe for the max is 2.25 before flex.. and 2.5 after flex..i think u should stick with that... even civics and stuff get 2.5 inch piping when they upgrade..

 

2000cc? Is that like a 2 litre engine, 4 cylinder?

 

did cefiro have option of the vq30 or a turbo 4 banger?

i think the jdm equivilent of the q45 had option of the 4.5 liter engine or a turbo vq30..

 

wait... if it's a 2.0 the is it a sr20de? Aren't the Samsung "Maximas" in 2.0 also?

If they have those intake manifolds then I guess we shall soon have "CVI" at lower price?

 

there is a VQ20DE
http://www.auto.vl.ru/catalog/nissan/cefiro/1996_5/
and
http://www.carview.co.jp/Vip/Engines...EFIRO/2001.asp
use the link below to translate
http://babelfish.altavista.com/

 

HEY!!! That's the first pic I've seen online with a manifold like mine. Does anyone know if it is better or worst?


Thanks. I only hope I'm not making a mistake by going with the 2"->2.25" after reading..
I just don't want to loose low end torque. What I would like to know is if those Civics that get the 2.5 pipes actually know why they put it or if they just put it because they heard bigger is better. They do own Civics after all

The engine is a VQ20.

 

Its definalty better!

 

Holy crap iansw get on this!!! There's gotta be a Nissan Dealer in the Carrib that sells those... would it make any diff if it's for the 2.0's?


Civics are the laughing stock of the whole world... LOL

 

Ya someone should see if they can order some Mevi's from the Carribean!

 

Ummmm what does Mevi stand for??....Is it the intake manifold from the middle east that I have been reading about? Variable intake or something?

It would actually make more sense getting a dealer in Japan since here in Trinidad most foreign used vehicles are imported from there. You may however find dealers in Trinidad but then they would have a mark up on the price. I'm not sure if they have started bringing in engines as yet...but most likely.

We have e-mail contact with a guy in Japan who bids on the car in auctions but I don't think he deals in parts...just whole cars