SRT-11

I searched! Spent about an hour and found people mentioning it, but nothing substantial. Forgive me if this is a repost or has been covered 400,000 times, but I'm curious, would a true dual setup be worth a shot? there's room to do it, but the pipes would be close together... would the pipes have to be so small it would sound lame? Could you remove the factory j-pipe and exhaust, and then custom run 2.25" pipes with resonators on each pipe (staggered so they'll fit) to mufflers on each side?

Fulani has a TL

iTrader: (1)

Not possible, otherwise we all would have been doing it

stillhere153

iTrader: (1)

:disagree: <- not an icon

the best course of action for this project would be to get an atlp jpipe which is unfinished and is not joined at the collector section... then you'd run same diameter tubing all the way back... with an X pipe in the stock y pipe location...

I studied this long and hard... but this was back when only a comptech catback was available...

go back to my thread, there is plenty of speculation and doubt, but in the long run I figured it wouldn't be necessary... since greddy catback was released

ps. you'd want to run it with as little bends as possible

flydog

I think it is possible, but when you consider the minimal benefits with the amount of time and labor it would take to make this happen it just isnt worth it. As the previous poster mentioned, you would need to start at the downpipes and build a custom system from the j-pipe back, probably $2,000-$3,000 if you paid someone to do it. Also, it would be heavier and probably wouldn't add much in terms of horsepower.

SRT-11

Very good point, it would be significantly heavier, and would be a PITA to have piped. I think I'll just stick with 2.5" back from the ALTP J pipe, that was my initial plan.

Here's another question for someone with more experience than I, I'm looking to add as much power as possible while keeping the exhaust as quiet (a little louder/deeper = ) as possible with no drone or rasp and no "fart", would 2.5" off the j pipe, no cat, through a 36-48" resonator, to a Y (2.5" in, 2.25" outs) to two Borla turbo mufflers accomplish that?

stillhere153

iTrader: (1)

all you'd have to do is install 1 resonator... aero 2.5" diamter... this thing is small and non restrictive but loves to shut the drone up... everone outside the car would be mouth open jaw dropped, everyone in the car canhold a conversation

SRT-11

Right, that's what I want to do, I'm thinking:

Block - Headers - First Cats - ATLP J pipe - (no cat) 2.5" piping - 36" or 48" resonator - Y splitter 2.5" in, 2.25" outs - borla turbo mufflers - stock tips

Fulani has a TL

iTrader: (1)

Correct me if Im wrong, or Im just looking at this a wrong way, but isnt a true dual exhaust a setup where each header has its own set of piping, cats, tubing, resonator, mufflers, tips?

anx1300c

iTrader: (2)

You're correct.

aznbo187

iTrader: (1)

A true dual would have to be from the primary cats back. Eliminate the 3rd cat, run 2.25" piping to the mufflers. I've been looking at something like this for a while, but not many people would be up for the price. It's pretty much double the piping.

I am curious on how it will sound though.

stillhere153

iTrader: (1)

all you have to do is run the richie v6 precat deletes... one of the 2 jpipes available except without the collector... leave them seperate... all the way back... with no resonator would be insane... prob sound like a high rev v10 lol

but no one has stepped up to the plate on the tl side...

KaMLuNg

iTrader: (5)

if you don't know what you are talking about, why would you say something like that???

where are the shots of the Accord with a true dual set-up???

04accordcpe

iTrader: (3)

^^ lol, here ya go

ive posted these pics up before, true dual setup on a 7th gen accord. all the work done by labree motorsports.



tanabe mufflers












iirc, the whole setup (excluding the mufflers) cost him around $900, but this was back in 05.

its the same place that built my first jpipe,

SRT-11

Well wouldja lookit that! That's quite similar to what I was envisioning... hrm...

j pipe + cat delete + cat back = 400 + 125 + 1050 = ~1600

or

custom true dual = 500 to 900 + muffs! (I say 500 because people are hungry for work in a lot of places with the economy taking a poop and all...)

The question- how'd it sound, what were his gains, what'd it all weigh?

skyy406

that looks beautiful! damn!!!

Schu

ad a burns collector and better welds and I'm in

04accordcpe

iTrader: (3)

well it was loud, no doubt about that. he was compteplating installing bigger resonators.

the gains were nice! he was the first one to get 240whp out of his 7th gen back in the days, when i/e were the only things out for our cars.

i dont know how much it weighed, but i gaurantee it was much less than the stock exhaust. the jpipe he made for me was light as a feather.

aznbo187

iTrader: (1)

Sean,

that guy is in the valley. I've been dying to hear it but he never responded to any of my PM's.

Set me up my man!

04accordcpe

iTrader: (3)

hey mike, are you talking about drew the one who owns the accord or labree motorsports?

if its drew, he doesnt really visit the forums to often. he got rid of his accord and bought an evo a couple of years back.

labree is right in your back yard (SFV) near canoga and strathern.

aznbo187

iTrader: (1)

I'm talking about the accord owner. Have you heard it in person? Impressions?

SRT-11

So the goal with the J pipe would be to maintain equal lengths and the flexible joint/coupling that allows the engine to move without torquing the exhaust or vice versa? I don't want loud, not really at all. slightly louder and deeper is my goal, no rasp, drone or fart. That's why I wanted to get super long resonators...

flydog

Long resonators make it sound deeper?

SRT-11

That was my interpretation of what the tech at Borla I spoke with yesterday told me. I could definitely be wrong, I know pipe diameter must play a big part, but I explained to the tech exactly what I was trying to accomplish and he agreed with my idea of the 2.5" piping through a longer resonator (he did confirm that the longer the resonator the less drone, etc) to a Y-split to (2) 2.25" I/O Borla Turbo mufflers would be his Reco.

SRT-11

He also said that their other lines of mufflers weren't as aptly suited for our application, that they're more for V8's and big blocks, etc.

junktionfet

Wow that true dual setup is the truth. If someone made similar hardware for the TL-S, I'd probably go for it.

aznbo187

iTrader: (1)

If there was interest.

SRT-11

is it important to keep equal lengths in a true dual setup?

also, what's the advantage of an H pipe or X pipe? pressure equalization?

jnc2000

IF you build it they will come.

Wow I like it.....

aznbo187

iTrader: (1)

An X or H pipe is there to assist in exhaust pulse scavenging. When you have two separate pipes, one per 3 cylinders, it enables the pulse of one pipe to "pull" the pulse of the other pipe in a scavenging matter, and visa versa. But, not always is this benefitial. R&D is usually the most efficient way to discover if you this helps.

04accordcpe

iTrader: (3)

loud and a little raspy. it wasnt the greatest sounding exhaust thats for sure.

jnc2000

If only I lived out in So Cal..... I would be on for testing aznbo187. Unfortunaltly the only benifit to living where I reside now is having Summit Racing within 20 minutes from my house... There are no shops out here

Schu

Indeed 187... if you build it they will come, at least I will :-)

win63dow

I would love something like that as long as the sound was correct . An X or H pipe also helps torque .