O-M-G! That BEAUTIFUL sound...

[8ATM4NX]

so my friend has a 91 hardtop
last time I've seen his deuce, back I'm June, ha a single exhaust NOT dual... And I liked how it sounded
now he doesn't have any exhaust just straightout downpipe and it still sounds the same and Im still ammused
so my question is how do you take off the stock dual exhaust and make it single????
the other one is how do you make it just with the downpipe???
what exactly do I need to remove???
does anyone use single exhaust or straight downpipe???
if so, do you recommend it???

[CyFi]

The stock exhaust isnt really dual, its just a single inlet muffler with 2 outlets

[naikaidiver]

The vast majority of the high hp dueces in Japan use a large single exhaust.

OK, now are the pro's and con's.

- No reason to change your stock exhaust if you have an NA unless it's HEAVILLY modified. Doing so can actually hurt performance.
- Turbo cars can greatly benefit from a free flowing exhaust but the stock CT26 really doesn't move enough air to justify it.
- Single exhaust setup is lighter.
- I agree, the single does sound better (turbo cars only)
- Single is cheaper than an aftermarket dual.
- Huge selection of mufflers if you choose a single exhaust.

These are just a few things that come to mind after only one cup of coffee this morning but if you would like a more in-depth discussion on this subject, I would be happy to explain.

Scott

[8ATM4NX]

Originally Posted by naikaidiver

The vast majority of the high hp dueces in Japan use a large single exhaust.

OK, now are the pro's and con's.

- No reason to change your stock exhaust if you have an NA unless it's HEAVILLY modified. Doing so can actually hurt performance.
- Turbo cars can greatly benefit from a free flowing exhaust but the stock CT26 really doesn't move enough air to justify it.
- Single exhaust setup is lighter.
- I agree, the single does sound better (turbo cars only)
- Single is cheaper than an aftermarket dual.
- Huge selection of mufflers if you choose a single exhaust.

These are just a few things that come to mind after only one cup of coffee this morning but if you would like a more in-depth discussion on this subject, I would be happy to explain.

Scott

THANX
LOOK FOR EXAMPLE....I WOULD LOVE TO MAKE MY DEUCE SOUND LIKE THIS

YouTube - MR2 dicorved downpipe no muffler

OH GAWD THAT SOUNDS SO BEAUTIFUL! LOL

[Gairloch]

Originally Posted by naikaidiver

The vast majority of the high hp dueces in Japan use a large single exhaust.

OK, now are the pro's and con's.

- No reason to change your stock exhaust if you have an NA unless it's HEAVILLY modified. Doing so can actually hurt performance.
- Turbo cars can greatly benefit from a free flowing exhaust but the stock CT26 really doesn't move enough air to justify it.
- Single exhaust setup is lighter.
- I agree, the single does sound better (turbo cars only)
- Single is cheaper than an aftermarket dual.
- Huge selection of mufflers if you choose a single exhaust.

These are just a few things that come to mind after only one cup of coffee this morning but if you would like a more in-depth discussion on this subject, I would be happy to explain.

Scott

Scott I don't know where you're getting your information but the bit about NA engines not responding well to exhaust is incorrect.

Even just a cat back exhaust will result in nice gains, header back results in significant gains on an otherwise stock motor.

It is true that an INTAKE doesn't result in gains unless you've also got other VE (volumetric efficiency) mods such as cams or port/polish.

[TomsMR2]

its not a huge gain.. but its pretty hard to make a worse exhaust than stock

[BulitSpongeTWO]

im using the apexi GT spec exhaust and it sounds awesome. ill try to get a sound clip up

[naikaidiver]

Originally Posted by Gairloch

Scott I don't know where you're getting your information but the bit about NA engines not responding well to exhaust is incorrect.

Even just a cat back exhaust will result in nice gains, header back results in significant gains on an otherwise stock motor.

It is true that an INTAKE doesn't result in gains unless you've also got other VE (volumetric efficiency) mods such as cams or port/polish.

I stand by my earlier statement. HP-per-dollar, it's hard to justify the expense of a header-back exhaust upgrade on an otherwise stock engine. There's better money to be spend elsewhere first.

And you're right, maybe I should have been a bit more clear on my earlier statement about hurting performance. I should have simply said that the key to achieving maximum hp in any NA engine is balance. The right exhaust matched to the right cam, matched to the right compression and flow characteristics of the head and intake, matched to the right TB, matched to the right injectors and a properly dyno-tuned ECU managing the ignition and fuel delivery. But the OP wasn't asking for that kind of detail so I didn't give it while I did offer it.

So, I made a blanket statement based on personal experience of too many damn people that slap 3" pipes with a free-flowing muffler on an otherwise stock motor and much to their surprise, they have crap for throttle response and non-existent low end torque. But boy their F-ing engine sounds good!!

Don't accuse me of just pulling stuff out of my butt. I know you know your stuff and by now you should have read enough of my posts to know I'm no moron around a car either.

Scott

[8ATM4NX]

Originally Posted by naikaidiver

I stand by my earlier statement. HP-per-dollar, it's hard to justify the expense of a header-back exhaust upgrade on an otherwise stock engine. There's better money to be spend elsewhere first.

And you're right, maybe I should have been a bit more clear on my earlier statement about hurting performance. I should have simply said that the key to achieving maximum hp in any NA engine is balance. The right exhaust matched to the right cam, matched to the right compression and flow characteristics of the head and intake, matched to the right TB, matched to the right injectors and a properly dyno-tuned ECU managing the ignition and fuel delivery. But the OP wasn't asking for that kind of detail so I didn't give it while I did offer it.

So, I made a blanket statement based on personal experience of too many damn people that slap 3" pipes with a free-flowing muffler on an otherwise stock motor and much to their surprise, they have crap for throttle response and non-existent low end torque. But boy their F-ing engine sounds good!!

Don't accuse me of just pulling stuff out of my butt. I know you know your stuff and by now you should have read enough of my posts to know I'm no moron around a car either.

Scott

Haha ok ok back to my question!!!
how do I get that sound on my 2???
does it matter if its an N/A???
my friend has an N/A and it sound like the one on the video

[mr29180]

Originally Posted by 8ATM4NX

Haha ok ok back to my question!!!
how do I get that sound on my 2???
does it matter if its an N/A???
my friend has an N/A and it sound like the one on the video

here...CRW Gallery :: custom 3" passenger side exit exhaust :: IMG_0067

[naikaidiver]

Originally Posted by 8ATM4NX

Haha ok ok back to my question!!!
how do I get that sound on my 2???
does it matter if its an N/A???
my friend has an N/A and it sound like the one on the video

My old '91 3SGE MR2 that I had in Japan had the 5Zigen Dual Exhaust on it with a custom downpipe and no cat. I won't lie, while the car just sounded awesome, I lost low end torque and the engine didn't even come alive until 3500rpms. (no, I didn't have that installed, the previous owner did).

I really wish that exhaust was offered in the USDM. It bolted up using the stock hangars and looked much like the OEM muffler but with larger tips. I'll post a picture later since I am still at the office and my pics of the car are at home.

What are your plans for this motor? Are you going to go Forced Induction, NA Power or are you going to do a swap in the near future?

Scott

[8ATM4NX]

Originally Posted by naikaidiver

My old '91 3SGE MR2 that I had in Japan had the 5Zigen Dual Exhaust on it with a custom downpipe and no cat. I won't lie, while the car just sounded awesome, I lost low end torque and the engine didn't even come alive until 3500rpms. (no, I didn't have that installed, the previous owner did).

I really wish that exhaust was offered in the USDM. It bolted up using the stock hangars and looked much like the OEM muffler but with larger tips. I'll post a picture later since I am still at the office and my pics of the car are at home.

What are your plans for this motor? Are you going to go Forced Induction, NA Power or are you going to do a swap in the near future?

Scott

maybe just NA power and in the near future maybe a swap

[naikaidiver]

Originally Posted by 8ATM4NX

maybe just NA power and in the near future maybe a swap

I'm going to refer you to a sticky post from mrturrari for several reasons. Not the least of which, he has considerably more experience with MR2's specifically than I do. This post should answer most if not all of your questions.

Scott

Getting power from a 5SFE without forced induction

[Gairloch]

Originally Posted by naikaidiver

I stand by my earlier statement. HP-per-dollar, it's hard to justify the expense of a header-back exhaust upgrade on an otherwise stock engine. There's better money to be spend elsewhere first.

And you're right, maybe I should have been a bit more clear on my earlier statement about hurting performance. I should have simply said that the key to achieving maximum hp in any NA engine is balance. The right exhaust matched to the right cam, matched to the right compression and flow characteristics of the head and intake, matched to the right TB, matched to the right injectors and a properly dyno-tuned ECU managing the ignition and fuel delivery. But the OP wasn't asking for that kind of detail so I didn't give it while I did offer it.

So, I made a blanket statement based on personal experience of too many damn people that slap 3" pipes with a free-flowing muffler on an otherwise stock motor and much to their surprise, they have crap for throttle response and non-existent low end torque. But boy their F-ing engine sounds good!!

Don't accuse me of just pulling stuff out of my butt. I know you know your stuff and by now you should have read enough of my posts to know I'm no moron around a car either.

Scott

I never said anything about you personally so please just take what I wrote at face value and don't be adding connotations I didn't explicitly include.

The stock 5sfe exhaust is horribly restrictive and even a stock motor will respond well to especially a header back exhaust. The $$ per HP argument is subjective and based entirely on the builder's goals and expectations. A 3" exhaust is maybe not the ideal size for a stock 5sfe but even that can result in an overall improvement over the stock exhaust and the most available exhausts just happen to BE 3". I was skeptical myself until I helped install one and had a chance to see the results.

[naikaidiver]

Originally Posted by Gairloch

I never said anything about you personally so please just take what I wrote at face value and don't be adding connotations I didn't explicitly include.

The stock 5sfe exhaust is horribly restrictive and even a stock motor will respond well to especially a header back exhaust. The $$ per HP argument is subjective and based entirely on the builder's goals and expectations. A 3" exhaust is maybe not the ideal size for a stock 5sfe but even that can result in an overall improvement over the stock exhaust and the most available exhausts just happen to BE 3". I was skeptical myself until I helped install one and had a chance to see the results.

I was having a rough day at the office yesterday. I don't get grumpy around here very often but it does happen. Sorry about that.

Sometimes I have to remind myself that "general rules of thumb" don't apply to all cars. More so with the MR2. That's why I referred the OP to mrturrari's post.

If there's one thing about me, I am man enough to admit when I am wrong and in this particular case, I was.

Scott

[PETC]

The answer to your question is you get under the car and start unbolting the exhaust from the downpipe all the way to the muffler and then you remove it, you may have to drop the rear crossmember to remove portions of the exhaust, but that's not hard.

I'm kind of confused, was your friend's car a turbo? Because if your's is NA you are going to be hard pressed to aquire the sound of a 3SGTE due to the fact that the motor is simply designed differently and doesn't have a turbo to muffle some of the exhaust. NA cars without mufflers are incredibly annoying in my opinion, but anyways, this might not even apply to you.

[8ATM4NX]

Originally Posted by PETC

The answer to your question is you get under the car and start unbolting the exhaust from the downpipe all the way to the muffler and then you remove it, you may have to drop the rear crossmember to remove portions of the exhaust, but that's not hard.

I'm kind of confused, was your friend's car a turbo? Because if your's is NA you are going to be hard pressed to aquire the sound of a 3SGTE due to the fact that the motor is simply designed differently and doesn't have a turbo to muffle some of the exhaust. NA cars without mufflers are incredibly annoying in my opinion, but anyways, this might not even apply to you.

thanx for the intructions doode
but yeah my friends is an N/A with headers,intake and some other few mods but not turbo
but if mine is an N/A, it wont sound like the one on the video???

[PETC]

More than likely it'll just be ungodly loud and rather annoying.

[328FTW]

I'm with PETC. You really need some form of muffling to quieten/control the tone and smooth out the sound. One of my mkI cars has no muffler and everyone says that it sounds great but they have never driven it anywhere or tried to find a leak with the engine running. It just wears on you everytime you start it.

That video listen to where he revs it and compare that to a nice namebrand muffler. There is a big difference between a loud sound and a nice one. If you really want it to sound like the one in the video just unbolt from the cat like he has and put a pipe out the side and hey presto you have an exhaust that has no quality sound to it but is really loud so it will sound like a 2.3 instead of a 2.2.

[mr29180]

Originally Posted by 8ATM4NX

thanx for the intructions doode
but yeah my friends is an N/A with headers,intake and some other few mods but not turbo
but if mine is an N/A, it wont sound like the one on the video???

nope... the video is a turbo car..
your car will sound different..

if you get the a apexi and if you have the adapter for na from crw mmm it might sound good lol