ntegra2ner

my dad is thinkin about puttin exhaust on his v6 accord.
Somebody told me that dual exhaust on a v6 accord loses low end torque...
is that true??? im not sure....or would it be better to just get a single exhaust?

BLKFLSH

You could gain horsepower, but loose tourqe. Need some back pressure. My V6 is two into one back into two. So I'm sure it creates some back pressure that way.

gianinline

The V6 accords now come with dual exhaust..... so.... what year is your accord? Maybe a dual exhaust... but... not too big mid pipe....

RealDealAccord

Hmmm, it would be a very interesting setup to see true dual exhaust on an Accord... you'd really be packing those pipes in to get it done. Like above, you'll most likely gain some horsepower at high rpm, and lose some low end torque, but not enough to really notice.

I say go with what sounds better, and TRUE duals should give a deeper sound, while single (that splits into two tips later) should give a slightly cleaner, higher pitch sound (er, that's how it was for LS1 Camaros... should be the same scenario).

Also, I would suggest asking about pipe diameters and sound. Some of the guys on here might have had muffler shops do custom pipes, and might have different diameters. They might be able to let you know what tends to sound better on Accords.

On my '04, I just had the rear mufflers cut off, and pipes fabbed up with the factory tips going to the back, and it sounds pretty good to me, not loud, and really inexpensive. I just couldn't justify sinking $450+ on a catback for a V6.

Good luck! Exhaust is one of the most fun things to tweak and experiment with!

RealDealAccord

New Accords are dual exhaust? My '04 EX V6 is single... What years have dual exhaust?

gianinline

I've seen lots and lots of accords that had the emblem V6 and had dual exhaust.... one pipe on each side.... some of them were coupes and some were sedans.... from the 6th generation to most recent ones!

BLKFLSH

Mine is an 03. It has two into one into two. It's not dual all the way back. That's why I think it's so quiet. You can hardly hear my exhaust. It collects in the middle of the car, then splits back into two pipes again.

BLKFLSH

Real deal . You should have two pipes coming out the back too. They are kind of hidden under the bumper though. You have to look good to see them.

Sthrnba711

The new accord V6's are all dual exhaust, but not true dual like stated earlier. It would be really nice to see someone put a nice set of hearders and make a true dual. Bet if done right could sound really good and get some pretty good power gains. Just depends on whats used in the process.

Rickety

Dual exhaust will definatly look better.
As for performance, who cares? .... It's an Accord. You won't lose much torque anyways.

YeuEmMaiMai

Don't the new accord V6s have that nasty j pipe in there? A good dual exhaust will have good performance gains with little to no loss in torque..

RealDealAccord

Two exhaust tips don't mean dual exhaust. A lot of people think Camaros and Trans Ams are dual exhaust - they are single also.

What I'm talking about is "true dual exhaust," which is really just dual exhaust - two seperate pipes running from exhaust manifolds (or headers) out to the rear of the car, perhaps with an X or H pipe.

Dual exhaust sounds significantly different from single. I'd be interested to see how different it would be on something like a smaller displacement 6. But from my experience, there isn't much room to fit two pipes in place of the one. Maybe just a larger diameter single, which would sound a little deeper.

H2290

Oh good lord! Everyone knows we're talking about duals out the back and not true dual exhaust. I mean seriously . . . VERY few cars have true dual exhaust. I don't care you what you want to call it, if your Accord has two pipes sticking out the back then you have DUAL exhaust pipes, no matter where it splits at.

RealDealAccord

Read the original post. There is no power/torque difference between a single exhaust system that splits at the rear or a single exhaust system that runs as one pipe straight out.

There is a difference between a restrictive smaller diameter single pipe, and two pipes, front to back - as well as whether those cross each other with an X pipe or pressure equalize with an H pipe.

If we were talking about two tips or not, there would be no reason to discuss anything.

acercord

hey guys

i also have an v6 accord....i been search on ebay and found variety of dual exhaust particularly for v6 accord....what do you guys think?..is ebay is a good place to get a set of exhaust?

BLKFLSH

IMO you need a big V8 to make a true dual exhaust sound good. Just about every pickup truck around here has dual exhaust. You can definatly tell which one's are V8's and which are V6's. The 8's sound soooo much better.

PhongT12

chrome dual exhausts on a 2006 accord ex v6. i don't have pictures of the actual exhaust pipe, but they are significantly larger than the previous generation with much room for airflow. i haven't noticed any loss of low end torque. it still has that "breaknecking" feel every time you floor it, especially since it's with a 244 hp/211 ft lb v6. this is coming from a guy that once drove a 1991 accord ex, 2.2L 130 hp inline four. just resting my foot gently on the accelerator is enough for cruising speeds whereas i had to step on the gas 3/4 of the way to cruise around 45 mph on the 91 accord.

out of all the accords i've driven, the new 8th generation is definitely the best yet. the new 5 speed automatic transmission doesn't "gear hunt" anymore. i would also suggest test driving the 6 speed as well. it's 0-60 is rated at 5.9 sec rather than the automatic's 6.7 sec which is still impressive compared to other sedans.

HondaMike17

thats a cool idea man, my girlfriend has dual exhaust on her V6 camaro, replaced the stock with straight pipes, sounds great

kbanks45

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by RealDealAccord &raquo;</TD></TR><TR><TD CLASS="quote">Hmmm, it would be a very interesting setup to see true dual exhaust on an Accord... you'd really be packing those pipes in to get it done. Like above, you'll most likely gain some horsepower at high rpm, and lose some low end torque, but not enough to really notice.

I say go with what sounds better, and TRUE duals should give a deeper sound, while single (that splits into two tips later) should give a slightly cleaner, higher pitch sound (er, that's how it was for LS1 Camaros... should be the same scenario).

Also, I would suggest asking about pipe diameters and sound. Some of the guys on here might have had muffler shops do custom pipes, and might have different diameters. They might be able to let you know what tends to sound better on Accords.

On my '04, I just had the rear mufflers cut off, and pipes fabbed up with the factory tips going to the back, and it sounds pretty good to me, not loud, and really inexpensive. I just couldn't justify sinking $450+ on a catback for a V6.

Good luck! Exhaust is one of the most fun things to tweak and experiment with!</TD></TR></TABLE>

What about a 2004 4cyl.. Can you just add a splitter after the cat and run another muffler to the other side after removing the little plastic piece they have in place to cover up where the other muffler is suppose to go, or I ment to say where the tip comes out the bumper? I wouldn't think that it would make that much of a difference, performance wise. What do you think?

Hondaman56

V6 Accords came from the factory with dual exhaust.....

AFAccord

I suppose if you wanted to do some custom fab work on your stock manifold or on a new set of headers , you could squeeze two pipes, up to 2.25" each, back to the rear mufflers, where you could mount the usual coffee cans or a couple flow master mufflers. It would be very possible, and I would like to see it, but I wouldn't want to do it to my car. I would imagine the results would be either phenomenal, or horrific.


Something similar to the picture below, only all the way back.


As for the original question... Open up the exhaust too much, and you will lose some low end torque. I've found that loss to be rather annoying in town. As for top end gains, you will not yeild much if any by opening the exhaust. It's just my opinion, but I'd much rather have good torque than top-end power. Especially since you're looking at a 3.0 liter motor.


Modified by AFAccord at 2:10 PM 12/7/2005

Legendaryyaj

A full catback on the 6th gens will totally kill your lowend.

The 7th gens are a little better. There has already been a true dual setup done on the 7th gen coupe but to me it sounded like straight ***. It could have been the mufflers that the guy chose but it sounded aweful.

RealDealAccord

Hmm... as far as a power difference, it would be better, but I always say get the exhaust system that you like the sound of, and worry about power in other places...

For a 4-cyl, you would probably be just as well off having a muffler shop fab up a large-diameter single pipe from the front to the back. Larger diameter pipes and true duals (or possibly even a single that splits close to the motor) would sound deeper and flow better. (assuming that your cat(s) and muffler(s) are of the same large diameter - otherwise, you'll still restrict flow at smaller diameter inlets to cats and mufflers)

Point is that I wouldn't think it would be worth the trouble to install a Y-pipe and have to pack two pipes in when you can get the same effective pipe area out of a larger diameter pipe. Also, one pipe with the same effective area of two pipes would have less "pipe wall" and less restriction (since fluids flow faster toward the middle of a pipe's cross section, and almost stationary at the wall itself).

However, like mentioned above, you'll lose some low-end torque and gain some high-rpm horsepower. But this isn't necessarily a good thing, since peak horsepower numbers are useless, and torque is what pulls horsepower up at low rpm.

Long story short, it's all in what you like. There's a LOT more to exhaust systems than just slapping up some pipes.

So if you don't care about low-end torque, want a little more horsepower up top, and don't mind louder - go for a more open exhaust, which will be fewer restrictive components, larger diameter pipes, or multiple pipes. Try resonators instead of mufflers, and high-flow cats, etc.

If you want to keep your low-end torque, and don't want it very loud, keep a more restrictive setup: smaller pipes, more restrictive components.

In general, throatier and deeper sounds come from larger pipe diameters and true duals, while mellower, higher pitch sounds come from a single pipe with a smaller diameter.

The cool thing is there is no definites, and no limits to how different you can make something sound. Just go for it, and have an idea on what you want - select pipes/components accordingly.

H2290

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by PhongT12 &raquo;</TD></TR><TR><TD CLASS="quote">
out of all the accords i've driven, the new 8th generation is definitely the best yet. </TD></TR></TABLE>

The 8th gen? You've already driven an 8th gen? That is amazing, they aren't supposed to come out until 2007 as an 08 model. I too have an 06 like the one pictured but please show us the pic of the 8th gen, I want to see it.

Unless of course you are talking about the 7th gen refresh. That would make much more sense.

PhongT12

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by H2290 &raquo;</TD></TR><TR><TD CLASS="quote">

The 8th gen? You've already driven an 8th gen? That is amazing, they aren't supposed to come out until 2007 as an 08 model. I too have an 06 like the one pictured but please show us the pic of the 8th gen, I want to see it.

Unless of course you are talking about the 7th gen refresh. That would make much more sense.</TD></TR></TABLE>

the 2006 is nothing like the 2003-2005 versions, because of brake assist and traction control, redesigned front and rear bumpers, added hp, and retweaked suspensions, so that's why i called it an "8th gen." i could really care less what generation it is, i'll just call it "the new accord." however, you could probably leave the smartass comments to yourself.