Absolute loudest muffler?
Thread Starter
Evolved Member
iTrader: (16)
Joined: Oct 2007
Posts: 1,710
Likes: 0
From: Daytona Beach/Melbourne, Florida
So you drive a slow car but you want to be as loud and noticeable as possible? That's the definition of rice isn't it? Anyways, a straight pipe will be the loudest by far. If you want really loud, run the pipe out the side of the car so it's basically an extended downpipe.
OT, you don't gain power by having the loudest system possible, you don't even need a straight pipe necessarily. While in theory less restrictions make more power in a turboed car, the difference can be minute and you risk causing off-boost issues (ie. car is great in boost, slower out of boost).
OT, you don't gain power by having the loudest system possible, you don't even need a straight pipe necessarily. While in theory less restrictions make more power in a turboed car, the difference can be minute and you risk causing off-boost issues (ie. car is great in boost, slower out of boost).
this reminds me of about 25minutes ago at the local dragstrip.. an early 90's integra that was louder than the loudest drag car out there runnin 17's.... LOL loud=gay, and how do u keep a turbo spooling til redline with no back pressure??
Thread Starter
Evolved Member
iTrader: (16)
Joined: Oct 2007
Posts: 1,710
Likes: 0
From: Daytona Beach/Melbourne, Florida
as stated before, the pressure is created within the bends of the tubular manifold.
HKS Carbon TI
http://www.hksusa.com/products/?id=1733
http://www.hksusa.com/products/?id=1733
Thread Starter
Evolved Member
iTrader: (16)
Joined: Oct 2007
Posts: 1,710
Likes: 0
From: Daytona Beach/Melbourne, Florida
HKS Carbon TI
http://www.hksusa.com/products/?id=1733
http://www.hksusa.com/products/?id=1733
HKS Carbon TI
http://www.hksusa.com/products/?id=1733
http://www.hksusa.com/products/?id=1733
http://www.youtube.com/watch?v=rT7Vt7HLee8
I have no idea what this guy wants... I see loudest muffler than 100% straight pipe so I wanted to tell him 100% straight means no muffler. It seems like all he wants to do is go catless. I think he'll need a little bit more back pressure depending on the muffler he goes with. a 3" inlet with a 2.5" outlet will do fine but if he does a 3" and 3" than he won't have hardly any back pressure and he's going to end up sounding ridiculously loud. It's exhausts like these that I have to here 10 times a night when I am trying to sleep...
Straight piping is without a muffler. "Straight pipes" to a muffler is a catless exhaust.
3'' all the way back? Guess what, you will have so much turbo lag you'll never get to see all the power you are making when driving on the streets. Dyno nuymbers are one thing, USABLE power is quite another.
Back pressure is also important for turbo applications. You don't want your car to be painfully slow from 0 to 5,000k rpm right?
3'' all the way back? Guess what, you will have so much turbo lag you'll never get to see all the power you are making when driving on the streets. Dyno nuymbers are one thing, USABLE power is quite another.
Back pressure is also important for turbo applications. You don't want your car to be painfully slow from 0 to 5,000k rpm right?
Obviously kid you don't know a whole lot about what you are talking about either... Yes you need some back pressure especially after you go turbo.
One last thing you aren't 100% straight piping cuz you are still going to use a muffler. Straight piping is STRAIGHT PIPING which means no muffler... You are just going catless.
One last thing you aren't 100% straight piping cuz you are still going to use a muffler. Straight piping is STRAIGHT PIPING which means no muffler... You are just going catless.
I was talking about the comment above. He is talking about a straight pipe 100% with no muffler. This would loose power for sure and will sound ridiculous. My friend tried this with his gti and it slowed the car down as well as quite literally made it sound like a semi. Also seen this done on a 2007 evo with the same effect. A muffler would provide enough back pressure to get the job done.
Usually the loudest ends up being the slowest. With the car turbo'd your going to need to hold some back pressure to keep everything pulling hard all the way thru the gear. I wouldn't go universal ever but thats just me. I would bring the downpipe back into a catback made for the car. Have someone custom weld it if need be. Take a look into some of the evo exhaust optons, i would say thats the safe route to go. As for going straight pipe all the way back. DON'T the car will sound like a Semi and you'll literally loose power.
C'mon guys, you need to stop posting this misinformation. This is all wrong. "Seriously guys, what the ****?"
You never ever want backpressure. In a motor with a turbo or without. Period. Say it with me.
In an NA motor, you want velocity, you do not want backpressure. Optimal velocity in the exhaust (NA motor) increases VE by the scavenging effect. Google it if you don't believe me.
With a turbo motor, the job of the exhaust is to spin the turbo and after it has done that, it is literally waste. Any restriction afterwards will lose power. 3" should suffice for anything under 500whp. For the power level I estimate you would hit, 2.5 should be good. Read corky bell if you don't believe me, Google that if you don't believe him.

On another note; The thread title in itself makes me cringe.
I'm not here to be a dick, but you guys are talking in a very condescending tone to the OP all while you yourselves have no idea what you are talking about.
Lets learn together and stop bashing.
Last edited by Boltz.; Apr 22, 2009 at 09:23 PM.
thats wrong, i have that on my evo and its not that lound unless your really going, even before i bought the car it was catless with that exhaust and still wasnt as loud as what the guy on this thread wants. I had a lancer before and i think the loudest mufflers i heard (with a CAT) are a brand called TSUDO and u gotta get the N1 model, here is a vid on youtube and i believe this car has a cat im not sure, so without a cat probably be very loud.
http://www.youtube.com/watch?v=rT7Vt7HLee8
http://www.youtube.com/watch?v=rT7Vt7HLee8
That video is of cryptos car. The exhaust is only 2 1/4". It is however catless. Here is my take on things. Backpressure creates tq, so if you want torque, you want SOME backpressure, it also creates heat. My suggestion or the ideal setup I would say do a 3" downpipe to a 3" hi-flow cat, then run the 2.5" from the cat-back. It will still yield a loud exhaust without losing power. Oh yeah and a suggestion on a mufller......http://stores.speedcorps.com/-strse-...-II/Detail.bok
That video is of cryptos car. The exhaust is only 2 1/4". It is however catless. Here is my take on things. Backpressure creates tq, so if you want torque, you want SOME backpressure, it also creates heat. My suggestion or the ideal setup I would say do a 3" downpipe to a 3" hi-flow cat, then run the 2.5" from the cat-back. It will still yield a loud exhaust without losing power. Oh yeah and a suggestion on a mufller......http://stores.speedcorps.com/-strse-...-II/Detail.bok
Backpressure does not create torque. That is an old myth.
Get the Most Rice Exhaust you want... but keep the F*cking Cat on man!... honestly, whats with everyone running catless on daily driving? i understand onthe track... but going to work,school, coffee run?...
we dont need people to kill our breathing air for a measley 2 hp gain... Buy an Evo you'll get over 100hp gain WITH a Cat... Jesus!
we dont need people to kill our breathing air for a measley 2 hp gain... Buy an Evo you'll get over 100hp gain WITH a Cat... Jesus!
I am using a Works AB on my IX, which I know is a different platform from the 08 Lancer, but they probably have one for the X that would work. It is just a straight pipe axle back. I only use it for track days because it is pretty loud, so it is probably about what you are looking for
That video is of cryptos car. The exhaust is only 2 1/4". It is however catless. Here is my take on things. Backpressure creates tq, so if you want torque, you want SOME backpressure, it also creates heat. My suggestion or the ideal setup I would say do a 3" downpipe to a 3" hi-flow cat, then run the 2.5" from the cat-back. It will still yield a loud exhaust without losing power. Oh yeah and a suggestion on a mufller......http://stores.speedcorps.com/-strse-...-II/Detail.bok



