I noticed a thread about what to do with the Gen 4 and 5 crushed area behind the resonator. As usual we came up with a low buck fix, it is a pretty simple fix and involves just 2 bolts and one clamp with choice of resonators or none. So far we have heard reports of 2-3 mpg better gas mileage. We have installed this fix already on several Gen 4's and did mine yesterday as well as added a 2001 Maxima muffler to mine. Sounds great even without the resonator.

We are also modifying the Gen 5 mufflers to easily bolt on to the Gen 4, if you buy one simply send it to us, we'll modify it and you bolt it on your car.

I did not put the resonator back on as you will notice in the pictures. We are working on a price now but with a resonator suspect they will be less than $85.

http://www.warpspeedperformance.com/bpipefix.htm

As well, we have some 2-1/2" test pipes available......$25 for those with no o2 insert, $27.50 with the o2 insert. Gaskets and bolts included of course. Shipping is just $7.50. Hard for me to imagine anyone paying $70 for one but if you send it we'll spend it.

I think you guys with the 2001 and 2002 might want to check and see which catalytic converter you have because we suspect it is the "metallic substrate" version which are actually designed to increase horsepower by creating turbluence in the converter.

Our mandrel bent B pipes will be ready soon for the Gen 4 and 5 and our own personally designed custom stealth mufflers will be coming in Feb. and will as always be priced less than the rest but give maximum flow and minimal noise.


Dallas
WarpSpeed Performance

 

Dallas you the man. I mean WHAT IS WITH THAT BEND on the back of the resonator? I mean did they bend it just to put the hanger over there?

Secondly, I thought about removing my resonator entirely, but I got a Custom Muffler and already a Testpipe, and dont want so loud that it is going to **** me off, cause I drive long trips every month or so.

So I wanted to install like maybe a 36" resonator, since also I got a Ypipe coming next week (which will make the sound worse-r than it already is).

Let me know what you come up with, I am FIRST IN LINE for this piece. But still, one more question, the picture shows only part of the Bpipe you guys correct. What about the other 90degree bend that goes from there into the header clamps that meet the Muffler pipe? That bend is bad too.

Dixit

 

They crush the pipe for the clearance of the rear hanger and cross brace. The pipe in the photo replaces everything between the cat and goes past the first bend after the resonator by about 10-12".

I think the 36" might be a little too long, you could probably do a 24-26", I would probably go with a 2-1/4" or 2-1/2" cheese grater style, it will kill the sound but not the flow. Tell you what, I have a 2000 coming in on Monday for our new Y pipe and we are doing the B pipe and stage 2 sfc's, I'll measure and see what the longest might be which would fit. Most shops only have the 24" but we buy parts from a company which actually builds resonators so I'll ask them to see if they would build the longest for me which would fit. I don't think it will be a problem at all and I will be there Tuesday. Send me an email: bmfjeep@direcpc.com and I'll let you know what I find out. I'll just pick up a couple if they are in stock.

Our new B pipe will be mandrel bent and will be available in 2-1/4", 2-1/2" and we think 2-3/4". The 2-1/4" will bolt to the stock muffler and the 2-1/2" and 2-3/4" will bolt to a center inlet muffler.

Dallas
WarpSpeed Performance

 

Dallas, this is the Cat I have on my 2001....

http://www.5thgenmaximas.com/howto/rt%20cat/rt-2.jpg

And here is a picture of it compared to a RT-CAT

http://www.5thgenmaximas.com/howto/rt%20cat/rt-6.jpg

 

Cool, I kinda lost you where you said the 2.5 and 2.75" will bolt to a center inlet muffler? I already have a custom muffler with a center inlet. Does that mean I gotta cut off where my muffler guy welded on the shortpipe and clamp yours on?

On the other thing, I definetely want to kill the sound, I drive long trips, just dont want to affect performance at all. I will let you know how bad it gets when I install the Ypipe next week with the stock resonator and testpipe and custom muffler already on my car.

Dixit

 

hrmm - how much is a 5th muffler???

 

No offense, but why in Gods name are all the 4thgenners all over this crappy 5th gen muffler? Are they really that in love with this "variable valve" that to me does nothing?

Dixit

 

sweet, so this pipe connects from the cat up to the muffler flange and includes a resonator..... shiet i want one
ya you are the man dallas..

Adam

 

How much for the mandrel bent B-pipe?

 

MAX2000JP read the first post by Dallas on this thread. Prices arn't fixed yet. We think around $85, probably cost you $100 with the shipping. Why pay more for a big name when you will get the same flow for less cash? We will be posting PICs of the 5th gen SFCs next week and taking measurements to find just how long a resonator will fit if you want one.
BTW alot of 4th Gen Guys are interested in your mufflers. We get mail all the time form 4th gen owners who want us to make a muffler like it.

Dan WSP

WarpSpeedPerformance.com

 

Sorry I wasnt sure if that price was for the "fix" you had that removed the bend behind the resonator or if the price was for a B-pipe that goes from the cat flange to the muffler.

 

Wow, $100 shipped for a mandrel-bent b-pipe? You guys make me feel all warm and fuzzy.

Keep up the great work.

 

I think I am getting that feeling too

 

What will the b-pipes be made from? Anything to compensate Canadian winters?

I would like a b-pipe with perforated res or with no res (max performance and nice sound) for my 2k1 asap. I just don't want any droning when cruise control is set on highway trips. I have an intake and y-pipe..cat and back is stock. Also I'm not sure what size I need....I will not be boosting with SC or Rice juice.

As for the test pipe I am interested but would like confirmation as to any performance gains over the stock 2k1 cat.

Also the 5th gen muffler is excellent IMO.

 

The B pipe fix will be 2-1/4" aluminized steel tubing, we will be offering the complete B pipes in 2-1/4" and 2-1/2" aluminized steel and stainless steel. Unlike Stillen and Cattman ours will be 16 gage not the thin "aircraft stainless" that's what you call it when you make them out of the almost paper thin .049" vs the .083" we use.

When you start talking about perforated tips or resonated tips on a muffler you are basically talking about a "made in China muffler" or tips and they are almost always a dtm style.

Our new mufflers which should be available in mid February will be more of a stock looking muffler with nice stainless tip or tips with real 2-1/2" internal baffle tubes. They have been designed to be a stealth muffler, meaning lots of flow, minimal sound. Made 100% in America and will fit the gen 3,4 and 5 Maxima's.

I suspect we will be extending our 4 year no rust through warranty on our aluminized steel cat-backs as well.

Dallas
WarpSpeed Performance

 

Will a 2.5 inch SS B-pipe fit into the stock 2K muffler?
Is the SS 304 or a different type?

Very Interested.
How much for full b-pipe?

 

We are making ours 2 ways, first so it can be attached to a stock muffler(We are looking down the road a few years.), second so it will attach to our new muffler design which will have a center inlet. The center inlet is used by almost all universal fit aftermarket mufflers, we felt the advantages of designing a B pipe to install to that type of setup would be a better seller than the stock configuration. With so many mufflers out there why limit the choice by designing one which would only accept a stock setup muffler. As I mentioned ours are to be aluminized steel and 16 gage 304 stainless.

Dallas
WarpSpeed Performance

 

When you said you were making a b-pipe that is meant for center inlet mufflers, will the mufler still line up with the hole cut out on the bumpers?

BigDog: I really dont know what the crazy is about the 5th gen muffler myself & i own a 4th & 3rd gen. People think that extra chamber seems to give the car a lot more HP. People who have tried it felt no power increase (butt-dyno) and have seen no gains on a dyno as well. Its all in the head.

 

The 5th gen muffler is quiet yet performs. There is no proof of any other muffler for the 5th gen that gives more power. More obnoxious sound but where is the proof of power. I think Nissan did an excellent job on the 5th gen muffler! Any additional power would come from replacing the b-pipe and not the muffler itself IMO.

 

Same thing I was thinking. I just wanna get the mandrel bent B-pipe with the stock muffler so I dont attract any attention and noise doesnt go up

 

I'm slighly confused. When you said 2 ways does that mean that you're making 2 different b-pipes or are you making it so it can fit 2 different ways.
So its possible to fit right into the the stock muffler setup..?

What is the price for 2.5 inch 304 SS B-pipe with connection to stock muffler setup?

Thanks.

 

Exactly... for a 2k1 in my case?

I would like the b-pipe to bolt right on to the stock cat (or test pipe) and my stock 5th gen muffler without too much hassle.

 

Same front section, 2 different rears. We know there will be many who want to keep their existing muffler, more will replace with a center inlet muffler.

Dallas

We are working on the price, guessing at around $350 for cat back.

 

I'm sold on the B-pipe. When will you have them ready for sale? I've got a 5th gen and would like to keep the stock muffler. Also I'd want a resonator at least as quite as the stock resonator (cheese grate kind) or close to it. Are there any performance gains with no resonator?