I just finished my custom dual cat-back exhaust system. My exhaust system is comprised of the following:
1)Stillen Y-pipe
2)RT Cat
3)3" pipe running to muffler
4)V-Force Camero muffler
5)2.25" pipe running directly out stock hole in bumper with 3.5" tip on it
6)2.5" pipe running behind and around spare tire with 3.5" tip on it.

The install took about 4 hours but with the power/sound gains - it was WELL worth it. It now sounds like I have a real V-8 under my hood. I cant wait for NO2! I tested my car stock at the track and pulled a 17.3@83 with a full tank of gas. This time I will have about a 1/4 tank of gas and a complete intake/exhaust system. I will post the times tomorrow night in the sticky 1/4 mile thread.

K

 

plzzzz

 

I will try, I will use my dads digital cam tomorrow to take pic's. I wont be able to get under the car though, but I will make sure I get the tips. I dont know if I can make the file fit onto a disc or not though...this is the only problem so far. If it fits it will be posted tomorrow in my sig. I hope it will fit on a disc.

K

 

17.3? what year Max do you have? hummm that seems kinda slow for any 4th gens. Thats koo, anyways, im not tryin to flame you but you would have saved money and go faster with a single exhaust setup vs the dual exhaust setup.

 

I have a '95 GXE auto with 150,000 miles on it. I ran that completely stock - I only took out the air filter. How could I have gone faster with a single setup? I ran a 3" pipe from the cat to the muffler, and the other stuff I already posted. I have 3" going into the muffler and 5.75" comming out. Please let me know, I may change it back if I can get more power through a single pipe.

K

 

dual setup=lost of torque. u are losing ur back pressure thus causing less power. think of it as this. it just has more pipes to go through to go out of. u want the least amount of piping for the fuems to leave out of. thats why a single straight cat back straight threw muffler is good. like apex. just my thoughts i maybe wrong but. let me know and post some pics up. interesting to see how it is. isnt there a box of some sort by the spare tire but. i was going to do this setup but had that box there. dont know what that is though. take care b

 

whoa... sounds nice...


i wanna see pics.!!!

 

17.3? Man...heh...that seems way high. But I don't know what stock auto times are I guess. Better watch

I've always heard gearheads talk about how the majority of N/A engines smaller displacement-wise than your average V8 get hurt performance-wise from a dual exhaust setup, and that people did it mainly for looks. But since I'm not too proficient under the hood, I'm not going to try to relay any mechanical reasons why.

I don't think it'd look right on a Maxi...I always thought Maxi's were aimed to be calm and modest (at best) in looks, but to have enthusiast-level performance underneath that calm, sedany shell. Maybe some pics will sway my view though.

 

Sounds awesome. Get some pics and 1/4 mile times befor and after please....I really want to see this .

 

17.3 is high but he lives in Denver... Mile high above sea level... Max can't breath....

 

why don't people ever find it relevent to include such details?

 

my car runs in the 20's

 

Probably because my post came at about 2 am. I didnt get to my dads house to snap any pictures yet, Im going to try to tomorrow. It ran a 17.353@83.15mph stock. Tonight it ran a 16.597@85.60mph. I think the dual might have hurt the overall performance but D@MN does it look sweet! Im not b**ching about the performance gains though, Im proud of my car. It dropped .75 seconds off my time! And it sounds sooooooooooo good. I cant wait to see what you guys think of the pic(s) I post. The exhaust is only dual from the muffler on, but I did replace the stock 2.5" pipe from the cat to the muffler with 3" pipe. The culmination of these two parts is probably what hindered me from reaching the full impact my $$$ would have gotten me. Oh well, when I get NO2 it will all be good. Sorry for not telling you that I raced my max at aprox 4900 feet above sea level, I will not make that mistake in the future. Oh, does anyone know of a site to convert my time to sea level to see what I really gained? Thanks

K

 

because the Max only has single exhaust exiting. You got that extra stuff there thats for looks only, adds extra weight. Some V8's have dual exhaust cause one bank of cylinders exits 1 pipe while 2nd bank exits 2nd pipe. The Max is V6 and the exhaust meets in 1 pipe and exits in one pipe. HOpe that makes sense....im hurt and tired....later

 

let's see those pics.

 

this guy knows what hes talking about, when V8s hve duals then come directly from the engine, not tapped into the middle of the exhaust, i do admit it looks tight, i have seen pics before, in fact i think i have a fake one on my car when it was all stock

 

oh someone just changed there sig, in the time i looked at the pic and came back. Nice F&F Maxima.

 

but you have to remember that all v8's don't come in dual exhaust.( iroc, trans am, explorer, tahoe )

but that pic of the max with dual exhaust looks very cool.

 

My dad is out of town so it will be a few more days until I get a pic posted. Next time I run the 1/4 I will plug one of the pipes and see if that makes a difference. I know that it is mostly for looks, thats what I did it for. Looks and sound actually. I will have to see if blocking one of the tips will increase/decreas the performance. Overall I am quite satisfied with it. It looks, sounds, and acts like it can kick some major butt, and last night I only lost to 2 cars that ran in the 12's. Sorry that there are no pics yet, mine does look different from the one posted above, you can only see one muffler(and its barely visable).

K

 

In that picture, how did they fit the second muffler? Last I checked under my car, there isnt any room for something like that. That pic looks tweaked anyways....still, looks nice.

Adam

 

read a little closer... taht is a photoshopped picture of what i may look like. The best dual conversion is in fivelitrekiller's maxima and he had the spare tire well cut out in order to fit the piping.

 

ya, this guy pays close attention, i did do it on photoshop, hence the word "fake" but thats cool, glad u like the pic in the sig, there is a good pic on megamaxs site that looks better than that one

 

That Photoshop pic is not what my car looks like. I cant wait until tomorrow when my dad gets back. I will try to get a shot from under the car to show how we ran the pipes and another from the back showing a direct shot at trunk level. All you can see are the tips. It looks awesome but I am going to go to the local PD to see if it is too loud to be street legal, if its too loud I will have to put in a turbo tube behind the cat to quiet it down a little. I will let you all know tomorrow. Next time I run the 1/4(this friday) I will have one of the exhaust tips plugged to see if that improves performance, if it does I will tell everyone not to do a dual exhaust unless you want to plug it every time you go to the track.

Someone asked for before and after 1/4 times. Well here you go: Best "before" 1/4 time was 17.34@83.20mph. Best "after" was 16.59@85.60mph. Im VERY pleased with these results. The corrected "before" time is 16.48@86.40mph, and the corrected "after" is in my sig. That is an even bigger increase and makes me even more happy.

K

 

ok, i dont think plugging up one exhaust hole will do much. The weight is already on the car, thats my main point. Putting the extra useless weight and extra money to do it. You can put 4 mufflers on the car, but will it perform better? nope, wut if you covered up 3 holes? still shouldnt perform better.
97GLES, are you asking me for pics? im not sure what your asking for? yea, some of those cars you metioned dont come with dual exhaust, but if its a V8, the 2 banks of cylinders are meeting somewhere to come out one exhaust pipe, you can seperate those and exit 2 exhaust pipes and you might gain power from that.

 

Hahaha, how much "extra" weight do you think I have on there? Did you read my write up of how I split them? I might have an extra 12 lbs on my car. I split the exhaust at the muffler, added 2.5" tubing that goes around the spare tire and out the back with a 3.5" tip. That isnt enough weight to make a difference in the time of a 1/4. I do think that plugging one of them will make a difference in the performance, I just dont know if it will improve it or hinder it. I will let you all know this friday night.

K

 

1/3.... Where you racing on friday nights?

 

please get a sound clip if possible too!
Thanks

 

well 12 pounds is 12 pounds. Plus the extra money spent. 12 pound here, 10 pound there, 5 pound here. it all adds up. My point was unnecessary money wasted and unnecessary weight. If a single pipe already alows enough flow for your motor, why would there be additioinal benifit from adding an extra pipe? so if you shove a bananna in 1 pipe the exhaust will come out of the other pipe with no change in performance.

 

I think you are missing my point. The extra 12 pounds will slow me down by aproximatley .012 on the 1/4. I will not continue to add little weights through out my continuing quest for maxima speed. The money was not unnecessary because I wanted to have dual exhaust, and now I have it. True, it is mostly for looks, but that is why I wanted it. Since I have a 3" pipe leading into my exhaust and a total of 5.75" leading out of it, my basic knowledge of physics would tell me that plugging up one of the pipes will increase back preasure and add power. I do not know if this is true or not yet, but after friday night I will know for sure. I appreciate your time and input on this matter but I didnt do this mod just to add power. I want my max to be unique and dual exhaust is one way to do that.

K

 

I live in Pueblo Colorado and I go to PMI. If you would like to go too let me know and I'll give you directions. Its $3 to get in and $10 to do Time Only runs, but thats all I want to do anyway. Let me know if you want to come on friday, I usually get out the about 7:00pm, and you NEED to wear pants if you are going to race.

Maxkid77, I will do a sound bite as soon as I can, but I need my brothers help to do that and he will not be back in town until the 1st of august. To compound the situation further we will be leaving on august 2nd for hawaii and I dont know if I will be able to get a sound bite the night of the 1st or not. I hope I can. If not I will have on about the 14th of august. Im about to run out to my dads house and take pictures so hopefully I will have them posted later tonight. Does anyone know how to post a pic? Thanks.

K

 

ya, its easy, just put the file in the attach file section near the reply button, if u want it in your sig too, say so and i will give the answer

 

u are coming to hawaii? what island? if u come to oahu,hawaii were mostly all of us modded maximas are. let me know by giving me a email or call if u come here. bring some pics of the car too. u can see us and are maxima club. take care b

 

Im not sure as of right now which island - but we will be there from the 3rd to the 12th or 13th. Im sure I can finagle my way away from the family and rents to see your cars and how your club is set up. Im organizing a meet for colorado members and we want to start up a club - have any suggestions? I will let you know either later tonight or tomorrow which island we will land on/stay on, and if we will travel to the different ones or not. Thanks for the offer for meeting up with me, now I just have to take more pics of my car.

Hey RedMax95 - how do you put it in your sig?

Here is the pic of the dual exhaust:

 

ok, click on download to look at your picture, then when the pic comes up there willbe a link in the browser, copy it, then go to your profile editing, and in the sig section write [img] followed by the copied link and then [/img] make sure there are no spaces though, try it now and see if it works

 

dangit i hate when taht happens where the pic is write [ img] copied link then [ /img], just take out the spaces inside the brackets, nice lookin duals btw

 

nice pics! hey, im too lazy to read throughout the post, but did you cut your rear bumper urself or did a shop cut it for you? if you did cut it yourself, what did you use? thanks, i would love to do this myself.

 

Thanks for the help RedMax95.

_DRU_ - I cut it myself since I wanted to ensure it would be the correct size and in the correct position. I used a hand held power saw. I dont know exactly what they are called but you need an air compressor to use them. They are about 5" long and about 2"X2" to hold on to. The blade goes in and out from the top of it and the blade is about 3-4" long. It took me about 30-40 minutes to measure it all right and to cut BOTH sides. The factory side has a lip on it that is about 1" long and goes in towards the muffler. Since I couldnt recreate this on the other side I cut it off this side for symetry. Hope that helps.

K

P.S. Thanks for the comments.

 

I need to post this pic again, it is the same as the one above, but smaller. That way the pic in my sig will be smaller.

K

 

I need to post this pic so that I can use it also, it doesnt have anything to do with the back of my car, it is a picture of the front. D/l it if you want, I think it looks good.

K

 

wow those are some big azz fog lights, if you can get away with it remove the liscence plate, you will be quite pleased