Hey All,
Sorry to ask a general question, about HP and muffler. I have just got in the 5th gen areana from the 3rd gen. I wanted to know with the 2k SE series that comes with 222hp, what gets the 2k1 SE the special edtion line it's 227hp? The literature describes re-design in muffler causing less restricted flow from engine. I do understand the concepts of exhausts, but wanted to get some suggestions on more of OEM change to get that 5 hp. I will do a warpspeed y-pipe, already there is a K&N cone filter in place. Let me know thanks. I really dont want to change the exahust system stay as is after the cat, along with keep the same sound and tone of OEM exhaust.

 

that extra HP has been debated a lot on here. some think that its really just a marketing thing that nissan did to make the AE seem more special.

the AE does have an infiniti muffler but does that really give 5 extra hp?
does 5hp really matter if you have 222? would you really feel a difference?

 

the Anniverary Edition has the 'tuned' muffler that puts out 5hp, that's it. I'm not sure if anyone has dynoed a stock SE and a stock SE AE to compare the 2 to see if the muffler really does do anything.. ? Most people replace the muffler with an aftermarket one anyway (if you're swapping out exhaust system parts).

 

It is definitly the engine cover

hahah jk I think that its a marketing bluff that Nissan made by putting on the Infiniti muffler.

 

LOL thanks for the input yea very true 5hp aint a real noticeable jump!!! 222 from 165hp is good for me!!!!

 

I agree. I know you're looking to understand why, but in fairness the Anniversary Edition does have "5hp" more but its heavier than a regular SE due to the special body kit

 

Unless you have a Canadian Annv. Ed. that did not include the body kit, though it does have every option that was available at the time.

Nissan says that the muffler has a flapper valve inside, that opens under high flow to allow for less restriction.

 

Sounds like they used the same muffler for the 5.5 gens. If that is the case and you really want to get the extra 5hp install a '02-'03 Maxima oem muffler.

 

it was high tech for 2001...

 

take a brand new max and dyno it...VERY rarely will one portray the numbers that the factory give anyway.

 

Don't bother worrying about the exhaust muffler. Just a get a y-pipe and b-pipe and you'll be set. In regrads to the literature, it sounds like you're referring to the muffler design when the 5th gen was introduced back in 1999/2000. If it's specifically talking about the difference between the SE and AE mufflers, please provide the documentation to shed some light on the topic. My understanding is all 5th gen mufflers (GXE/SE/GLE) are the same. They just have different tips.

 

The documentation of the valve in the muffler can be found in the sales folder for the 2001 Maxima, in the section covering the AE. They even have a cut-away view shown. There is also mention of it in this write up: http://www.theautochannel.com/vehicl.../russ0051.html

 

The 5hp is BS...

A Cattman B-Pipe might give you 5hp... 2000 Maxima's had the valved muffler so that was not new/different for the AE.

 

I guess the AE does have it's own muffler but I think it's more of a marketing thing like soonerfan said. So if jkmay01 wants to get an AE muffler, he can go here:
http://www.trademotion.com/partlocat...01&catalogid=1

But the fact remains that the all 2000/2001 exhaust mufflers do have that "valve technology" Here are pics of the 2000 brochure. Is it the same cut away pic?

 

the ae muffler is identical to the rest of the 5th and 5.5. the only difference in any of them is the tips. my dynos with my old ae did not dyno higher than the typical 5th gen auto. the ae did have different ecu numbers and b pipe part number, besides that it was all the same. just get the least expensive 5/5.5 gen muffler with the tips you want and you will be set.

 

Myth: Busted ?

 

busted...

 

get an intake and exhaust, problem solved.

 

808MAX-SPEC, the cut-away in the 2001 brochure is different than the one that your showing, though the same principle. I do not have a copy to post. Sounds as though Nissan has done a wonderful job of relieving high pressure gases up our posterior. Yes, the marketing boy's did their job.

 

so after all these posts, we have determined what I already said in the first reply

 

well, although no one really provided concrete evidence, it would appear so..

Did you expect the question to be a moot point after you put in your .2$ ?

 

I think its the AE badging

 

yes...after i reply, it should be a closed discussion. i know all
and do you mean a "moo point"? a cow's opinion?

 

Badges? Ahhh, we don't need no stinkin badges!

 

with the addition of the blacked out headlights of course, Nissan was way off, its now up to like 10hp extra FTW

 

Its all garbage.

The 222 or 227 Hp which is stated is the hp made at the crank. the ENGINE makes a certain amout of power which is measured there.

But getting it to the wheels reduces the power, so you might only have 185 at the wheel.

We all know that.

To say that the the exhaust/muffler gives extra 5hp is pure marketing.. Any less restrictive exhaust will inturn allow the engine to breath better, enabling it to make more horsepower (at the crank)--you are still going to have loss through the tranny.

Dont believe the hype!!

 

in my dynos, it showed even the 222 was a stretch for the crank power. my experience showed me the same that the 3.5 motor has shown. the hp is overrated and the tq is underrated to different degrees.

 

As entertaining as all your theories are, the claimed "5Hp" comes from the ECU. The ECU is different on the AE, we proved this when we were working on getting the TS ECU tuning done. My AE was the "donor" car for the autotragic tune that never came out. TS found that the Maps were slightly more aggressive on my ECU than was on the others. The only other difference I have ever seen between an AE and anything else, drivetrain-powerwise, is the lack of a resonator box in the intake tract, which some other SE's have and some don't, so I doubt that had anything to do with the "power" gain. In all honesty you can't feel it in your butt-dyno nor see it on a real dyno.

 

like i said...marketing gimmick

 

with 5hp being the difference, you are right that it would be hard to spot in a dyno. by the time it hits the ground we are talking 2-3hp with all else being equal between 2 different vehicles on the same dyno. it was a good ploy to sell a more expensive maxima, im just glad i paid below the regular se price when i bought mine new.

 

more like 1-2 hp (which is nothing when you are talking about 222 hp)

 

i think its more like 0-1 or maybe 2.5-3.5. wait, i forgot about 2.25-3.25 who cares, just mod it and get the most out of it.