Can you get a custom made exhaust?

[Specop 007]

You can go have a turbo map done to optimize the turbo for the car, I was wondering can you get a custom made exhaust system thats specifically designed for YOUR application to get the most out of the engine? Or is it pretty much just pick an aftermarket exhaust and deal with it?

007

 

[bradruth]

I recognize that user name from an email address that was PM'd to me...

 

[olds]

<---Bookmarks

 

[PowerMac4Ever]

Aftermarket exhausts are a WASTE OF $$$. I can't believe people are willing to drop $1000 on an HKS exhaust because of the name and the "titanium" muffler. A good thing to do would be to buy the mandrel-bent pipes and muffler online then having a competent hot rod shop weld it together for you.

 

[NutBucket]

Buy real cat-back designed for your car
Profit

 

[Specop 007]

Originally posted by: bradruth
I recognize that user name from an email address that was PM'd to me...

Why would someone PM you my addy? Oh well, I guess any questions I had I could just ask you so......

 

[HappyPuppy]

Yes you can if you have the money.

 

[Specop 007]

Originally posted by: PowerMac4Ever
Aftermarket exhausts are a WASTE OF $$$. I can't believe people are willing to drop $1000 on an HKS exhaust because of the name and the "titanium" muffler. A good thing to do would be to buy the mandrel-bent pipes and muffler online then having a competent hot rod shop weld it together for you.

But, lets say you take some stock engine, work the hell out of from 400 to 900 HP. If you wanted to get a fully custom exhaust that actually was optimized for YOUR engine is it possible? Not just a "Add 5 HP" after market off the shelf job, but a true custom exhaust where they actually mapped the backpressure and pulses and optimized a exahust for you?
Or is exhaust a moot point in seeking the most HP?

 

[bradruth]

Originally posted by: Specop 007

Originally posted by: bradruth
I recognize that user name from an email address that was PM'd to me...

Why would someone PM you my addy? Oh well, I guess any questions I had I could just ask you so......

Nevermind. I was thinking of someone else.

 

[SportSC4]

Yes, you can get a custom exhaust made for your car. I know of a few shops around here (CO) that have built exhaust for race cars, etc. IMO, it's important to find a shop that will build you a mandrel bent exhaust.

edit: I read one of your other posts. I don't know if any regular shop will map out the backpressure and pulses. A really good shop will have done it enough times that they will know what will work best with the piping route, turbo pressure, and hp amount.

 

[Pacfanweb]

Originally posted by: Specop 007

Originally posted by: PowerMac4Ever
Aftermarket exhausts are a WASTE OF $$$. I can't believe people are willing to drop $1000 on an HKS exhaust because of the name and the "titanium" muffler. A good thing to do would be to buy the mandrel-bent pipes and muffler online then having a competent hot rod shop weld it together for you.

But, lets say you take some stock engine, work the hell out of from 400 to 900 HP. If you wanted to get a fully custom exhaust that actually was optimized for YOUR engine is it possible? Not just a "Add 5 HP" after market off the shelf job, but a true custom exhaust where they actually mapped the backpressure and pulses and optimized a exahust for you?
Or is exhaust a moot point in seeking the most HP?

Most vehicles have several different header/exhaust combos to choose from, depending on how modified your engine is.
Unless you have a car that nobody makes anything for, there's really no need for a custom exhaust.....but, to answer your question....yes, there are thousands of shops that can custom make an exhaust for anything.

It's just not worth it unless there is nothing made for your car.

The only other time I could see that it's worth it would be if you have a race car that's built for a certain class to strict specs.....and the only way you can get extra power is by fine tuning....5 additional horsepower might mean something to you then.

 

[TechnoKid]

I'd say it kinda depends. I view it this way. Take for example drag cars. Once you get up there in HP, exhaust design is only relative, of course you're gonna have an exhaust that gives you the most HP for your particular setup. But, the real point I'm trying to make is that weight and durability/[replacability/fabrication ease] incase of failure/crash would be more of an issue to me than maximum HP gain.

If i am a owner of a competent race team, I wouldnt' worry too much about exhaust because they are hard to mess up; i.e, in my opinion, they take up much less reasearch and development than say, an intake manifold, or exhaust manifold, ignition timing, fuel maps etc. Anything after the header outlet(s) is really there just for noise supression.

 

[Goosemaster]

Originally posted by: TechnoKid
I'd say it kinda depends. I view it this way. Take for example drag cars. Once you get up there in HP, exhaust design is only relative, of course you're gonna have an exhaust that gives you the most HP for your particular setup. But, the real point I'm trying to make is that weight and durability/[replacability/fabrication ease] incase of failure/crash would be more of an issue to me than maximum HP gain.

If i am a owner of a competent race team, I wouldnt' worry too much about exhaust because they are hard to mess up; i.e, in my opinion, they take up much less reasearch and development than say, an intake manifold, or exhaust manifold, ignition timing, fuel maps etc. Anything after the header outlet(s) is really there just for noise supression.

:thumbsup:

 

[NutBucket]

Originally posted by: TechnoKid
I'd say it kinda depends. I view it this way. Take for example drag cars. Once you get up there in HP, exhaust design is only relative, of course you're gonna have an exhaust that gives you the most HP for your particular setup. But, the real point I'm trying to make is that weight and durability/[replacability/fabrication ease] incase of failure/crash would be more of an issue to me than maximum HP gain.

If i am a owner of a competent race team, I wouldnt' worry too much about exhaust because they are hard to mess up; i.e, in my opinion, they take up much less reasearch and development than say, an intake manifold, or exhaust manifold, ignition timing, fuel maps etc. Anything after the header outlet(s) is really there just for noise supression.

I don't quite fully agree with this but close enough🙂

 

[OS]

Originally posted by: Specop 007
You can go have a turbo map done to optimize the turbo for the car, I was wondering can you get a custom made exhaust system thats specifically designed for YOUR application to get the most out of the engine? Or is it pretty much just pick an aftermarket exhaust and deal with it?

007

Just go to a muffler shop, tell them how wide a pipe you want, what muffler and have them weld it together for you. Just remember to get mandrel bends instead of crush bends.

 

[TechnoKid]

Originally posted by: NutBucket

Originally posted by: TechnoKid
Anything after the header outlet(s) is really there just for noise supression.

I don't quite fully agree with this but close enough🙂

Well, i was just trying to put it in much much much simpler terms. A team like Ferrari and their formula one team spend a lot of time tuning the whole exhaust system, from header to muffler. On a race course like Road Atlanta, the typical car would be at high RPM most all the time, as with any other course out there. At those RPM, total flow would matter. I guess exhaust systems can get very techincal, but its nothing like fuel maps or aerodynamics and downforce etc.

 

[TechnoKid]

Originally posted by: OS

Just go to a muffler shop, tell them how wide a pipe you want, what muffler and have them weld it together for you. Just remember to get mandrel bends instead of crush bends.

Many of the muffler shops here around me don't have mandrel benders, and with good reason, they cost a fortune from what I have gathered on google. I'm sure I can find a stock car builder (Speedway 99 is right near me) who could tell me a place to get custom mandrel bent exhaust piping.

 

[volrath]

Is your car turbo? If so the best exhaust is no exhaust. AKA get the biggest pipes that will fit. Exhaust manifold is what really matters there. And of course turbine wheel size, housing size, which can be changed. I assume that's what you mean by changing a turbo map. There's no settings on a turbo, there's just the 2 wheels and housings that can be changed.

 

[rmrf]

Originally posted by: volrath
Is your car turbo? If so the best exhaust is no exhaust. AKA get the biggest pipes that will fit. Exhaust manifold is what really matters there. And of course turbine wheel size, housing size, which can be changed. I assume that's what you mean by changing a turbo map. There's no settings on a turbo, there's just the 2 wheels and housings that can be changed.

actually, no. depending on the displacement of the car, the pipe should only be so big, otherwise you actually lose power.

 

[TechnoKid]

Originally posted by: rmrf

Originally posted by: volrath
Is your car turbo? If so the best exhaust is no exhaust. AKA get the biggest pipes that will fit. Exhaust manifold is what really matters there. And of course turbine wheel size, housing size, which can be changed. I assume that's what you mean by changing a turbo map. There's no settings on a turbo, there's just the 2 wheels and housings that can be changed.

actually, no. depending on the displacement of the car, the pipe should only be so big, otherwise you actually lose power.

If you are on a race track say like watkins glen, infineon raceway, etc constantly pushing 5000+rpm, it really wouldn't matter; You'd want flow flow flow. This is of course talking of puposely built motors.

But for most street cars, yes. Overall size and exhaust pipe design will affect your power and torque curve.

edit: my engrish sucksorz 😛

 

[boyRacer]

Originally posted by: TechnoKid

Originally posted by: NutBucket

Originally posted by: TechnoKid
Anything after the header outlet(s) is really there just for noise supression.

I don't quite fully agree with this but close enough🙂

Well, i was just trying to put it in much much much simpler terms. A team like Ferrari and their formula one team spend a lot of time tuning the whole exhaust system, from header to muffler.

What Muffler? 😛

straight pipe goodness :heart:

 

[Nebor]

Originally posted by: Goosemaster

Originally posted by: TechnoKid
I'd say it kinda depends. I view it this way. Take for example drag cars. Once you get up there in HP, exhaust design is only relative, of course you're gonna have an exhaust that gives you the most HP for your particular setup. But, the real point I'm trying to make is that weight and durability/[replacability/fabrication ease] incase of failure/crash would be more of an issue to me than maximum HP gain.

If i am a owner of a competent race team, I wouldnt' worry too much about exhaust because they are hard to mess up; i.e, in my opinion, they take up much less reasearch and development than say, an intake manifold, or exhaust manifold, ignition timing, fuel maps etc. Anything after the header outlet(s) is really there just for noise supression.

:thumbsup:

I concur. The exhaust manifold\header should only be modified or replaced with a custom unit if your engine has been significantly modified from it's stock form. A lot of research goes into the header by the car manufacturer to optimise horsepower\torque.

Generally a custom exhaust manifold is only required if you're going to turbocharge a naturally aspirated car.

 

[TechnoKid]

Originally posted by: bR

Originally posted by: TechnoKid

Originally posted by: NutBucket

Originally posted by: TechnoKid
Anything after the header outlet(s) is really there just for noise supression.

I don't quite fully agree with this but close enough🙂

Well, i was just trying to put it in much much much simpler terms. A team like Ferrari and their formula one team spend a lot of time tuning the whole exhaust system, from header to muffler.

What Muffler? 😛

straight pipe goodness :heart:

or lack thereof😉 i would donate both my kidneys to be able to drive one of those.....

what i meant by "muffler" was anything after the header outlet flange, on a typical car. i should have said just exhaust, and not muffler. I don't like using the term exhaust because to me at least, exhaust entails the entire system (on a tyical stret car), and what most people refer to the fart can on hondas as the exhaust, hah. all of a sudden, slappin on a header and gettin an *titanium* muffler consitutes an exhause system. But maybe its really late and....man im must be tired.

 

[boyRacer]

Originally posted by: TechnoKid

Originally posted by: bR

Originally posted by: TechnoKid

Originally posted by: NutBucket

Originally posted by: TechnoKid
Anything after the header outlet(s) is really there just for noise supression.

I don't quite fully agree with this but close enough🙂

Well, i was just trying to put it in much much much simpler terms. A team like Ferrari and their formula one team spend a lot of time tuning the whole exhaust system, from header to muffler.

What Muffler? 😛

straight pipe goodness :heart:

or lack thereof😉 i would donate both my kidneys to be able to drive one of those.....

what i meant by "muffler" was anything after the header outlet flange, on a typical car. i should have said just exhaust, and not muffler. I don't like using the term exhaust because to me at least, exhaust entails the entire system (on a tyical stret car), and what most people refer to the fart can on hondas as the exhaust, hah. all of a sudden, slappin on a header and gettin an *titanium* muffler consitutes an exhause system. But maybe its really late and....man im must be tired.

i would jizz my pants just to touch one of those. 🙂

"exhausts" are now known as how "rims" refer to wheels 😱

 

[OS]

Originally posted by: bR

Originally posted by: TechnoKid

Originally posted by: NutBucket

Originally posted by: TechnoKid
Anything after the header outlet(s) is really there just for noise supression.

I don't quite fully agree with this but close enough🙂

Well, i was just trying to put it in much much much simpler terms. A team like Ferrari and their formula one team spend a lot of time tuning the whole exhaust system, from header to muffler.

What Muffler? 😛

straight pipe goodness :heart:

those f1 cars have the coolest looking header I've ever seen. Hopefully they're made from stainless steel. That way when people dig them up in a million years they can put them in a museum or something.