I was on CustomMaxima.com and came across these true duel design exhaust. Would this design actually benefit us as being v-6 powered? I think that 5th gens would look sexy as hell with two exhaust tips sitting like the se-r altimas. Even sportier than before, in fact as to why they didnt make an se-r versions of the Maxima really angered me.
http://http://custommaxima.com/produ...ducts_id=45263

 

Its not true DUAL exhaust, its just a split at the rear section. Just like the altimas, accords, new maximas and just about every other vehicle.

 

I wonder where it splits at on there setup?

 

Thanx for spell checking for me, I should have known better. But if we were able to have that done, Would the gains be extravagent?

 

That is a good question... anybody have the answer to that? and would there be any gains from this setup, besides a more aggressive look and weight?

 

NOt without a good tune you probably would lose power over gaining it.

 

This may be true because the exhaust velocity slows down when you have a split. I am going to go to a single exhaust for my 6th Gen Maxima

 

Well anytime you make a change to either how the motor inhales or exhales you will need to make a change in tune to make up for it .

 

Well I guess I need to stick to cattmans full exhaust kit. I was hoping to gain the dual exhaust look with the cattman gains in hp. I dont give a crap if we are grocery getters, they should have made an SE-R Version of the Maxima's. I guarantee they would have probably had a vast amount of sales at Nissan.

 

Stickers would add more hp per dollar than the "dual exhaust" setup.

 

The reason a dual exhaust would lose power in our cars is because it would not provide enough back pressure in the system. Plus it's ghey if it didn't come like that from factory. Stick with the Cattman, spray the hell out of it with a 75 shot, and elude the gheyness.

 

My single exhaust w/ stock muffler does fine as is.

 

From the website-
Specific:
General: TX catback exhaust - Signle 4.5" tip straight cut tip

I don't believe the pictures shown are the exhausts they are selling. I'm pretty sure those are just random exhaust pics as in (specific item may differ from ones in picture). The picture shows a dual exhaust but nowhere does it state "dual exhaust". Plust like it says above, single tip...

And Backpressure=

 

i don't understand how reduced back pressure is going to lower hp. was it torque you meant to say?

 

HP gains are a function of the scavenging effect of exhaust. Its a balance. The less exh. gas thats left in the combustion chamber, the more power the engine has, basically. The higher the exhaust velocity, the higher the scavenging. Exhaust velocity is related to the pipe size. The problem occurs when the pipe is too large or too small. If its too large, exh. velocity decreases and so does scavenging. If its too small, back pressure builds up, reducing scavenging. Its important to determine the optimal size of pipe for each car and its modifications and uses.

 

This is absolutely not true, adding a second muffler and a y split to the b-pipe would not decrease backpressure to the point that it would "lose hp". It is a common misconception that backpressure is "needed" to "keep" hp which is simply not the case. You decrease backpressure by installing headers, y pipes, larger diameter b pipes, removing resonators, free flowing mufflers, etc. but you also do these modifications to increase power. Now sure if you were running 2" primary headers and a 4" straightpipe off the y pipe then you'd be sacrificing power (especially lowend-midrange) but I don't think anyone here is doing such a thing.

DeusEx is absolutely correct about scavenging, he hit it right on the head as I was typing this.

 

+1 this is why some people run exhaust cutouts at the track. To reduce backpressure and free up the exhaust as much as possible.

 

I don't see any proof of this. So it's going to gain hp in a NA car? I've only seen 2 cars that have had this done. One was FI and there was benefit to it, the other was NA and there was negative benefit. I'm going off what I've witnessed not making assumptions. Anything is possible though, every car is different and there could be a gain or loss. From what I've seen unless the car was FI, there was a loss.

I'm just sayin.......

 

A dual exhaust would look sweet and as long as the diameter of the pipe was the right size then there shouldnt be to much loss in back pressure. It should still be good horsepower gains if its designed correctly. I think it would look best with a bumper with two exhaust cut outs though. It would look right on stock bumper.

 

Stock cat back has been proven to 250whp.

 

You'd probably have to go from a 2.5" pipe to two 2" pipes to keep exhaust velocity up. Quite honestly, the extra 2-3 hp you might gain from a good single exhuast sytem by going to split tailpipes will be offset by the weight of the extra exhaust pipes, mufflers and tips. The only real advantages I can see is duals look better and it might be quieter due to the same total exhaust flow being quieted by two mufflers instead of one.

The factory dual exhaust that I think looks really good is the '03-05 V6 Accords. Blacked out mufflers and tips, nice stealth look.

 

^ agreed, basically if there was the proper amount of room for dual mufflers I would think of doing it just from the looks perspective...otherwise single exhaust has been proven to make great power whether it be stock or a custom/aftermarket setup that is thought out properly.

 

You guys are completely knowledgable. I learned quite abit from this thread. As far as the Dual on us, I have seen maybe two 5th gens with duals and one 4th gen in Florida. But the fourth gen completely disgusted me because it had garbage a$$ chrome girlish rims. Deep lipped rims look so sexy on our Max. Looks better than a german car to me. Well I'll give it a couple years till I open up a tuning shop dedicated to maxima's. That's how much I love my car.

 

1. you wouldn't gain any power
2. you would be adding extra weight, which is like losing power in my book
3. it just looks dumb.
4. custommaxima is crap and I woud never give a cent to them.

 

I'm still 99% sure that this is a pointless thread because that exhaust is not dual. The picture they show is with dual pipes but that setup would not fit our cars. To fit a setup like that on a maxima we would have to cut out the spare tire well. It says right on the picture that it's not an actual picture of a maxima exhaust. Somebody is going to be pissed when they order this exhaust and what shows is a single tipped single exhaust cat back.

 

So you’ve finally caught up on the thread eh?

 

Eh what ya talking about man?

 

Exactly what I posted, what you stated has already been 'spoken' about in this particular thread, so, read post # 26.

 

It was spoken about by me Nobody replied and I was just wondering if I was the only one that thought that about it.

Thanks for reminding me bro

 

 

1. True
2. I doubt adding a second muffler and additional piping to the b pipe would be an extreme addition in weight, but true
3. Opinion
4. Never dealt with them but from what I've seen I'd have to agree.

 

wow.. i havent seen the new custommaxima "dual" exausts, but on the old website, they had a true dual setup.. anybody remember that? it showed a picture under the car, and it looked really weird how the pipes bended around to make a true dual exhaust out of a horizontally placed engine.. it costed alot of money, and wasnt proven to have any more gains than a regular catback.. by your description, this new one seems to be just for show, which deems it unworthy of spending serious money on it to me.. just my $.05

 

Yes, the setup on there old website was at least of the real exhaust system. I don't think they are providing a dual setup anymore. I've searched for the old dual setup and can't find it. I know it doesn't probly give much for gains but at least it looked nice.

Anybody know who made the old CE dual setup for the 5th gens?

 

so is this worth it

 

there has NEVER been a true dual exhaust for our cars...EVER

 

I guess that would be up to the person making the purchase.

If you want looks sure.
If your goal is speed, probly not.

But then again, I wouldn't buy a 12 second gremlin because it was fast. I'd rather have a car that looked good at the same time.

I'll always take a little of both, I have a fairly quick car but I still roll on heavy *** 20's for the look. Just my personal taste I guess.

 

it was a joke since you posted info that was already posted.
cant believe you fell for that

 

I guess I missed that oneGot Me

But what may have not been posted is where is the old CE "fake" dual setup. Anybody make it still

 

why

EDIT: you are trying to get to 15. well this isnt the correct way to do it.

 

+1 At least take the time to make a comment. Good or bad

He did it in this thread as well. http://forums.maxima.org/showthread.php?t=549865

I don't mind helping noobs but this is a complete waste of space and is the same bs that gets all the vets pissed all the time.