Put straight pipes on it. That's what I have and it sounds like a v8 ...at idle. As for the rest of the rpm range ...good luck!

 

Any manufacturer/model suggestions? MF? FM?...and I'm not sure if I read that right but are you saying it is hard to get a V6 to sound like a V8 at higher than idle RPMs?

 

The only reason the v6 sounds like a v8 at idle is because the exhaust is pulsing through the system at the same rate so it reaches your ear very similarly. At anything above idle the number of pulses for the v8 is more than the v6 so it sounds different. Its nearly impossible to get it to sound correctly. I'm sure if you have a degree in exhaust system design and a LOT of spare time you could do it. but for the average joe, I'd just look for an exhaust system that sounds good to you and go for it. Personally I love my straight pipes, its a very unique sound.

 

do you have an audio clip of them dave?

 

Yeah, like I have that kind of technology! I've been trying to coordinate an audio recording of my exhaust since I signed up here but I was never able to do it ...till now. But of course my car isnt running right now so I still got nothing. Sorry. Maybe next year!

 

This video inspires me and i really like that sound:
http://videos.streetfire.net/search/intrepid/0/a2fb1854-fe29-498b-a668-a7acfa8562b7.htm
Its a 2000 trep with a 3.2L (SMALLER!) with ONE single-in dual-out flowmaster 40...If this thing sounds that good...my 3.3L with TWO seperate FM 40s should be GREAT!

WARNING...audio quality sucks

 

Keep in mind that 3.2L is sohc and your 3.3L is ohv. Some people dont agree but I maintain that makes a big difference in sound! If you like the way that sounds then go for it! Just be aware that it wont sound identical.

 

This video inspires me and i really like that sound:
http://videos.streetfire.net/search/intrepid/0/a2fb1854-fe29-498b-a668-a7acfa8562b7.htm
Its a 2000 trep with a 3.2L (SMALLER!) with ONE single-in dual-out flowmaster 40...If this thing sounds that good...my 3.3L with TWO seperate FM 40s should be GREAT!

WARNING...audio quality sucks

That does sound good, and familiar. I'd know that sound anywhere! That car belongs to Travis aka Mr. Dodge.

 

Many things affect the sound of an engine.

I have heard a LOT of engines, each one has a unique tone, a Ford 4.6 modular sounds different than a Chevy 350, etc.

The 3.3 will never sound like a V8 to a trained ear. You can get close though, the sound depends on several things. The longer the pipes, the deeper the sound if all other things are equal. The more displacement, the deeper the tone as well, that's why I say a V6 with 3.3L will never sound like an average Chevy 5.7L V8. The more displacement, the more gas flow in the exhaust if all other things are equal.

To get a louder sound, remove the resonator and use a single muffler on each bank of cylinders. Beware that this will shift the power band of your engine up and reduce torque, hence the reason I am not a fan of true duals on anything less than a 4.0L engine unless some sort of forced induction is used unless top end HP is of paramount importance (top speed in exchange for less take off).

The valve train also changes sound. Multi valve engines like the 2.7, 3.2 and 3.5L will have a more refined sound than OHV 2 valve engines like the 3.3. This difference that the valve train makes is why a Lamborghini sounds different (and in my opinion, better) than a Camaro. I LOVE the sound of an LS1 Camaro.... but I get a chill down my spine when an Italian supercar whizzes by at full tilt!

Lastly, the number of cylinders affect sound as well. A 5.0L V10 Lamborghini engine sounds WAY different than a 5.0L Ford engine. The Lambo has a multi valve head and 2 extra cylinders, so it sounds different. The exhaust is different, but even if they were the same, the two engines would still sound different due to the other reasons listed.

 

(That does sound good, and familiar. I'd know that sound anywhere! That car belongs to Travis aka Mr. Dodge.)


I knew it was from this site

 

i've never got a V8 sound (nor do i want one) out of any of my exhaust experiments...mainly cuz i have my '79 Malibu if i wanna hear a V8

anyways, here are a few clips of my 3.3s...

http://videos.streetfire.net/video/wm/2ad4965c-6d0a-4ed3-91b5-984801167e80.htm

my last exhaust on my van before being parted out, & i think one of the best sounding ones, kinda has hints of Supra & Skyline, yet with pushrod growl
http://videos.streetfire.net/video/wm/26fb4701-9454-4ab4-aff9-982000f6699f.htm -alot of revs cuz my mother was backing down the driveway & i was trying to get her to rev too, lol, she didn't...

the old straight exhaust...
http://videos.streetfire.net/video/wm/ce9af7af-c7c7-47ba-9042-980601853b4f.htm

my old flowmaster set up...
http://videos.streetfire.net/video/da15460b-c99a-4149-b2e4-f3687ac08621.htm

theres more if you poke around all my videos on there

but you'll never get a V8 sound, you can get close to one during start up & idle, as soon as a V6 climbs into the revs, its V6 note comes out

-greg

 

Hey, I have to do the exhaust on my mom's '97 caravan. Could you send me some tips, tricks, pics, etc...? Unfortunately, she got stuck with the 3.0 mitsu engine. But, I've been slowly convincing my friend with a 3000gt vr4 to "borrow" me his heads, manifolds, turbos, etc...
No, I'm not insane ...most days! :flame:

 

Lastly, the number of cylinders affect sound as well. A 5.0L V10 Lamborghini engine sounds WAY different than a 5.0L Ford engine. The Lambo has a multi valve head and 2 extra cylinders, so it sounds different. The exhaust is different, but even if they were the same, the two engines would still sound different due to the other reasons listed.

It's in how many cylinders are firing too. It's why the Viper has exhaust treatment because it sounding like crap.

 

I want to actually hear my car( its a 3.3 too!) when its running, so i decided to cut off my stock muffler, and replace it with the lingest cherry bomb i could get. I decided not to do duals because my gas tank wasnt centered, so one side would have alot more bends in the piping. the cherry bomb cost $26, and the bends, and adapters costed like $25 too, i got all the parts at checker auto parts. it sounds awsome also. I made a 3inch square tip on thats cut at a 45 degree too so it looks pretty cool too. when its idling its got that deep rumble, and when u rev it up its got some back talk too.

 

Sweet, as long as your happy all is good. enjoy the trep, and get some more mods done!

 

hey chewie...lookie here \/\/\/

http://www.cardomain.com/ride/765554/1

i should warn you i had an '05 exhaust i had cut up for the hangers & the front slip fit connection, also i did it this way so i didn't have to hack up the old exhaust, so for any reason i can slip the old exhaust back on without any issues

but its pretty straight forward, very easy to do, no bends really needed, unless you want something fancy

i'm actully thinking of getting some dual oval tips for her to change it up, i dunno yet...


-greg

 

Not going to happen.

Cross plane crank V8s fire unevenly on their banks.
L R L L R L R R
V6s
L R L R L R
Flat plane crank V8s-ferrari, etc.
L R L R L R L R
V10s
L R L R L R L R L R
V12s
LRLRLRLRLRLR

 

If i wanna do a single-in double-out flowmaster 40, can someone give me a sketch or design of how i can run 2 pipes out the back? just something simple i can base my idea from. thanks

 

If i wanna do a single-in double-out flowmaster 40, can someone give me a sketch or design of how i can run 2 pipes out the back? just something simple i can base my idea from. thanks

Pipe from over the axle going into the inlet, then running one pipe straight out the back, the other one having a 90 degree bend, going over to the other side, another 90 degree bend letting you run it straight out the back on the other side.

It's not that hard... there are plenty of ways to do it. Just sit down and draw it out, maybe you'll come up with a better way.

 

Pipe from over the axle going into the inlet, then running one pipe straight out the back, the other one having a 90 degree bend, going over to the other side, another 90 degree bend letting you run it straight out the back on the other side.

It's not that hard... there are plenty of ways to do it. Just sit down and draw it out, maybe you'll come up with a better way.

Kinda like this??

btw, I HATE it like this. I get flow out the drivers side pipe but not the pass. ...but it sounds good!

 

i was thinking doing duals (true duals would be better), instead of the exhaust going back out the car it would go out behind the wheel, like the 87 buick regals or before the wheel would work too, like the vipers

thats the viper, u see where the exhaust exits before the wheel, or after would look good too...
http://www.mecanicimport.com/Others/Dodge_Viper/Viper 2b.jpg

 

damn i had to take a double take, mr dodge car is the same color with the same exhaust, and no emblems....could be my car! sounds identical too. I love it, especially under an overpass or in a tunnel, it sounds great! And i gained power from bottom to top. I think my stock muffler was a little plugged or something because alot of folks here say you lose torque, but with my car that just wasnt the case.

 

The only problem with running side pipes is that they need to exit behind the rear most passenger's head. In Michigan at least. Doing it on an intrepid would be cutting it close. Personally I'd rather have it exit behind the tire, a little quieter and it still looks cool as hell. I'll probably do that with mine next time, it would look really good with 1st gen firebird tips (duals).

 

i know it would look good on the first gen i've been thinking about this for a while only problem is i had to take it to an exhaust shop but dont have the $$ right now... but my only concern is the fuel and brake lines run on the driver side and im a little concerned that the extra heat thats gonna be coming from the exhaust pipes going under them...

 

Wrap it, get some header wrap and wrap the exhaust in that area. Or make a heat shield and put it above the exhaust. There are ways around the heat. For a heat shield you could go the the junkyard and snag a cat converter shield they are usually designed to clamp on to the pipe so install would be easy. I took my car to a shop for the exhaust that I have and I regret it. Worst $160 I ever spent. I love the sound but the method they used is rediculous.