First True Dual Exhaust A/C

Post by **Altimacoupe501** » Sun Apr 15, 2012 3:54 pm

Hey guys, I'm planning on going to my local shop and having my y pipe and back removed and having true dual straight pipes installed;)

Just wondering if I am going to be the first Altima coupe with true duals. I'll keep everyone who is interested updated.

Post by **JdsCoupe** » Sun Apr 15, 2012 5:06 pm

i think ive seen others, not very common though!

Post by **DJ_B_Easy** » Mon Apr 16, 2012 4:13 am

I dont think its been done by anyone on here. You do realize that its going to be ridiculously loud, right? When you say true dual straight pipe I assume you mean just that? No resonators or mufflers in line?

When I installed my Borla axle back I gave the car a few revs without an exhaust. It still had the Y Pipe and midpipe connected, and was LOUD.

Post by **SHIFT_COUPE** » Mon Apr 16, 2012 4:42 am

Sounds like a cool project. I don't see much room for that though. Keep us posted.

Post by **mrodrig2** » Mon Apr 16, 2012 8:41 am

All 3.5 Altimas have a "dual" exhaust simply because it's a V engine, albeit they do not have straight pipes which are pretty much never stock because of noise. The 2.5 has a "fake dual" exhaust in the sense that there is only one actual exhaust output being split up to 2 mufflers.

Post by **Hussain** » Mon Apr 16, 2012 9:11 am

mrodrig2 wrote:All 3.5 Altimas have a "dual" exhaust simply because it's a V engine, albeit they do not have straight pipes which are pretty much never stock because of noise. The 2.5 has a "fake dual" exhaust in the sense that there is only one actual exhaust output being split up to 2 mufflers.

they do have a "dual exhaust" but not a "true dual exhaust". After the first 2 primary cats, the exhaust piping snakes around a bunch and then goes into 1 pipe with the secondary cat there. from there it's 1 pipe to a muffler which has 2 outlets. True dual is 2 pipes the whole time...

No one has done it before. It may be a little difficult because of the way the piping snakes around (not a whole lot of room). good luck! after I sound deaden my car I plan to just have a magnapack resonator.

Post by **Ranga14** » Mon Apr 16, 2012 2:43 pm

This is a project I might take on at some point myself. Let us know how yours turns out.

Post by **DJ_B_Easy** » Mon Apr 16, 2012 3:58 pm

mrodrig2 wrote:albeit they do not have straight pipes which are pretty much never stock because of noise.

Im telling you, this bastard is going to be loud as all hell. Pretty raspy as well.

EDIT: That doesnt mean I dont want to see/hear it though!

Post by **Weimy812** » Mon Apr 16, 2012 4:55 pm

im not trying to hate on you for trying to do something different with your AC but these cars aren't supposed to sound ridiculously loud!!! We are supposed to beat mustang GT's not sound like them lol

Post by **nissan_4_me** » Mon Apr 16, 2012 5:18 pm

pics or videos or it didn't happen

sounds like a cool idea, but without resonators or muffler that vq is gonna be loud as S##t.

Post by **Altimacoupe501** » Mon Apr 16, 2012 5:44 pm

Well I went and had a buddy of mine look at it and give me a rough quote, he said about $250 because I'm gonna have to throw in some bends. So I think I'm going to take the plunge guys!:)

P.s. yes I know its gonna be loud, that's the point;)

Post by **YoungCoupe** » Mon Apr 16, 2012 6:41 pm

That's gonna be ridiculously loud. Like, hear you 20 blocks down kinda loud. Ok, maybe 10.

Post by **AlexN09** » Mon Apr 16, 2012 8:28 pm

Isn't this illegal? Wouldn't you get tickets for the sound alone plus never pass smog/inspection again?

Post by **DAAN.** » Mon Apr 16, 2012 11:32 pm

Altimacoupe501 wrote:Well I went and had a buddy of mine look at it and give me a rough quote, he said about $250

250 only ?!?
End of conversation

Post by **RicerX** » Tue Apr 17, 2012 5:58 am

That is gonna be extremely snug.

Good luck with your project! Post up some pictures.

Post by **2012NismoCoupe** » Tue Apr 17, 2012 4:24 pm

Status??

Post by **Altimacoupe501** » Tue Apr 17, 2012 4:48 pm

Just got back, I didn't get pictures of the undercarriage but I can tell you it was snug. Part of the pipes actually scrape when going over speedbumps or potholes ect. I had him straight pipe it and it was too loud, coming from me, so heed that warning. I had him throw in two glasspack resonators and it sounds perfect. I'm trying to get a video uploaded of the sound so gimme a minute.

Edit: if you can picture a normal single exhaust setup it's almost identical. He just ran two pipes separate from each precat back and bent them to the bumper cutouts.

Post by **wade001** » Tue Apr 17, 2012 5:18 pm

did you reduce the diameter of the pipes when you started the 2 pipe?

Post by **Altimacoupe501** » Tue Apr 17, 2012 5:25 pm

I'm still running 2.5 inch pipes on both sides

http://www.youtube.com/watch?v=djr_FziN ... ata_player

Sorry about the gaps in the video but I can't edit on my iPad. Tell me what you think:P

Post by **sndtgr08** » Tue Apr 17, 2012 5:36 pm

Good thing you added the resonators lol. Otherwise it would have been a fail. As it stands I give it an A+! Sounds great! Great vid! Funny ending

Post by **Ranga14** » Tue Apr 17, 2012 11:39 pm

WOW! That sounds REALLY good! I'm impressed.

Do you have any photos of your undercarriage and the piping we could see?

Post by **SHIFT_COUPE** » Wed Apr 18, 2012 4:38 am

Ranga14 wrote:Do you have any photos of your undercarriage and the piping we could see?

This!

I thought you would have taken pictures of the install!

Post by **DJ_B_Easy** » Wed Apr 18, 2012 10:29 am

Wow, sounds great. I think without the glasspacks it would be a much different story.

NOW THE PICS!

Post by **2012NismoCoupe** » Wed Apr 18, 2012 11:23 am

Sounds great, I like when the camera fell over, I laughed.

Post by **mrodrig2** » Sun Apr 22, 2012 11:44 am

Hussain wrote:
mrodrig2 wrote:All 3.5 Altimas have a "dual" exhaust simply because it's a V engine, albeit they do not have straight pipes which are pretty much never stock because of noise. The 2.5 has a "fake dual" exhaust in the sense that there is only one actual exhaust output being split up to 2 mufflers.
they do have a "dual exhaust" but not a "true dual exhaust". After the first 2 primary cats, the exhaust piping snakes around a bunch and then goes into 1 pipe with the secondary cat there. from there it's 1 pipe to a muffler which has 2 outlets. True dual is 2 pipes the whole time...

No one has done it before. It may be a little difficult because of the way the piping snakes around (not a whole lot of room). good luck! after I sound deaden my car I plan to just have a magnapack resonator.

You must not understand much about exhausts to know why they connect the 2 exhaust outputs and why it's still 2 separate streams whereas what OP was talking about is putting on straight pipes like a truck.

Post by **Hussain** » Sun Apr 22, 2012 8:39 pm

why dont you just shut the f*** up?

when people say "dual exhaust" they're referring to the tail pipes, not the full exhaust system coming from the exhaust manifolds. people say "true dual" when they're referring to 2 separate exhaust streams coming from the engine. The OP asked if he was the first to have a true dual exhaust set-up. Everyone understood exactly what he was talking about, except you.

Post by **MetallicSlate** » Sun Apr 22, 2012 10:26 pm

+1. A bit of rage. I've never seen that before from you Hussain.

Post by **SHIFT_COUPE** » Mon Apr 23, 2012 4:58 am

Hussain, I'm positive you know better than to talk like that to another member in our forum. Totally not necessary. Lets keep this thread on topic and friendly man.

If anyone has an issue. PM me. Otherwise lets get back to the discussion.

Post by **mikethemike** » Tue Apr 24, 2012 12:59 am

I dont think Hussain was the one instigating it.

Anyways, congrats on the set up. Sounds great. It probably wouldnt sound that good on a 2.5s though =(

Post by **SHIFT_COUPE** » Tue Apr 24, 2012 4:36 am

mikethemike wrote:I dont think Hussain was the one instigating it.

I can see that there was a misunderstanding, however there is a better way to handle things.

Now, lets see some pics of this thing!

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