Changing Small Resonators Just Before Tips with MagnaFlows...Thoughts?

[Vipuronr]

As some of you know, I have a muffler delete pipe either from Fitzgerald Performance or Snake Oyl. Regardless, it has two small resonators just before the chrome tips. These resonators seem to be loosening inside and creating a buzz at idle. I was thinking of having them cut out and replaced with MagnaFlow stainless resonators (done by a custom exhaust shop).

Any thoughts, good or bad, about Magnaflows?

Thanks!

 

[moparracing]

went with magnaflows on my GTS, sound good:

http://www.youtube.com/watch?v=aFQSAIHxdyk

 

[plumcrazy]

best sound changing mod i did was probably the muffler delete x-pipe. get rid of them !

what is your exact setup now ?

 

[Vipuronr]

Have stock headers (factory tube), Roe metal substrate hi-flow cats, muffler delete with small resonators at the ends before tips - 2 1/4 diameter.

 

[plumcrazy]

if it was me, id first get rid of the *** shooter exhaust. then put bullet mufflers in the sills, 3" all the way back but that is costly.

if you just wanna fix the rattle, go with any kind of muffler, i doubt it would make enough difference sound wise to care about, but magnflows do sound good. hope that makes sense

 

[Vipuronr]

Hey Plum, thanks for the advice. Hear what you're saying, but yet, expensive. I'd rather spend the money on another "improvement" mod. Thought the Magnaflows would get rid of the buzzing and still give it a nice, pretty loud, sound.

 

[plumcrazy]

its always easy for ME to spend YOUR money

 

[Zentenk]

If you are just replacing or removing muffler you wont get much performance gain. I would put another muffler on so it doesn't sound like poop.

 

[Vipuronr]

So, that answers the other question I had...if I just cut the resonators out and replace with just straight pipe. Will that not sound as good?

Thanks.

 

[plumcrazy]

louder.....

 

[Vipuronr]

Thanks Plum, I kinda figured. But, what I was worried about is not louder, in a good way, but somehow it sounds louder and bad. Can't explain it, but I have seen posts here and there related to "bad" exhaust sounds....maybe that was for running no cats. But, if I'm not mistaken, isn't there a muffler attached to the cats under the sills and that the muffler at the rear is a second muffler. Sorry not that well versed on the subject, so that's why I'm asking the question. If there is a muffler under the sill, then I am less concerned about not having the resonator at the rear.

Oh, and if I take out the resonators, do I need a X-pipe or is there already one in the muffler delete pipe?

Thanks very much for your advice.

 

[eucharistos]

So, that answers the other question I had...if I just cut the resonators out and replace with just straight pipe. Will that not sound as good?

Thanks.

what plum said and will add drone

x-pipe/h-pipe will reduce drone

i'm so drone sensitive that i would not do a **** del w/o some type of crossover

 

[plumcrazy]

the stock setup would have an OEM cat - OEM resonator in the sill and muffler at the rear

i never had a drone with HF cats, stock resonator, xpipe muffler delete but that can vary i guess.

 

[ViperTony]

If I were to spend your money I'd put together a Belanger H-pipe type setup back there:

This is the Belanger exhaust, rear, which consists of two Dynomax Race Bullet mufflers. There's a smaller pipe connecting the two towards the front. This is the "H" which helps reduce drone, I believe:

The actual race bullet muffler. I'm installing two additional in the side sills (where the stock resonator used to be) to help quiet down this beast.

And the inside of it. There's no material such as fiberglass but rather a metal weave. I don't know how a Belanger rear-end section will sound like on a stock system but it can't hurt. I think these mufflers/aluminized steel will make it sound good. Just my two cents.

 

[Zentenk]

H or X will not do anything to the drone.

X-pipe muffler delete with high flow cats: http://www.youtube.com/watch?v=l8oKFLCMQt8
Cats removed: http://www.youtube.com/user/Zentenk#p/a/u/1/96hSdjUTiBg

Does not sound good, drone makes your head numb.

 

[Vipuronr]

I hear ya, but I already have the muffler delete pips, so not going to throw away...like the sound, just not the buzzing at idle from whatever is loose.

Can the I-pipe be put in where the resonators are now? They are right before the chrome tips at the back?

Thanks.

 

[eucharistos]

H or X will not do anything to the drone.
.....

not conventional wisdom....

.....X-pipe muffler delete with high flow cats: http://www.youtube.com/watch?v=l8oKFLCMQt8
Cats removed: http://www.youtube.com/user/Zentenk#p/a/u/1/96hSdjUTiBg
.....

cool vids, but they do not "show" drone as i use the word

.....Does not sound good, drone makes your head numb.

agree 100%

 

[Zentenk]

Ride along 1000 miles and you will get to know the drone perfectly. The videos are to show how crappy the sound is without mufflers or cats.

H or X pipes are to smooth the pulses and help scavenge exhaust from the opposite bank, and they are to be placed ahead of mufflers and as close to the engine as possible. Doesn't work too well on Vipers in the very back near the tips. Not to mention it doesn't change the sound that much, the opening of the pipes are right next to each other. If there was an X-pipe side exit exhaust it would sound much better than a regular side exit set up.

In order to cancel drone you need the sound waves to bounce back upon itself. Does not work too well if there is no dead end in your pipe (that is what the Corsa muffler and helmholtz resonator do).

 

[aloushi]

Ride along 1000 miles and you will get to know the drone perfectly. The videos are to show how crappy the sound is without mufflers or cats.

H or X pipes are to smooth the pulses and help scavenge exhaust from the opposite bank, and they are to be placed ahead of mufflers and as close to the engine as possible. Doesn't work too well on Vipers in the very back near the tips. Not to mention it doesn't change the sound that much, the opening of the pipes are right next to each other. If there was an X-pipe side exit exhaust it would sound much better than a regular side exit set up.

In order to cancel drone you need the sound waves to bounce back upon itself. Does not work too well if there is no dead end in your pipe (that is what the Corsa muffler and helmholtz resonator do).

so if one already has Corsa muffler would it sound nice to keep it and just delete the cats and replace with X or H pipe? Which one would be better and who sells it?

 

[Zentenk]

Deleting the cats will make it louder, more raspy and smell worse and pollute the earth and give you cancer and your loved ones cancer. If you have a Gen2 you already have an H pipe on the Corsa cat-back.

 

[Vipuronr]

So, on the subject of X-pipes (H), is there an X-pipe already built into the muffler delete? If not, is there any reason why I would "need" one? Just curious.

On the resonators, I like the sound of the car now (if it wasn't buzzing), but wouldn't mind it a little louder. I guess my concern is that without the resonators, it might sound more like a car that has no mufflers....which I never liked except at the track. A solution seems to be to install race mufflers in place of the resonators...

Just reacting to Zen's comment:
"The videos are to show how crappy the sound is without mufflers or cats"

Any thoughts?

 

[eucharistos]

so if one already has Corsa muffler would it sound nice to keep it and just delete the cats and replace with X or H pipe? Which one would be better and who sells it?

if you have a corsa catback already, you have 1 of the best there is, if you like its sound keep it

 

[eucharistos]

.......H or X pipes are to smooth the pulses and help scavenge exhaust from the opposite bank, and they are to be placed ahead of mufflers and as close to the engine as possible. Doesn't work too well on Vipers in the very back near the tips.

you are correct, if the purpose is to increase hp, an x-pipe for this is impossible to do correctly on a viper

........ Not to mention it doesn't change the sound that much, the opening of the pipes are right next to each other. If there was an X-pipe side exit exhaust it would sound much better than a regular side exit set up.

In order to cancel drone you need the sound waves to bounce back upon itself. Does not work too well if there is no dead end in your pipe (that is what the Corsa muffler and helmholtz resonator do).

this is where we part, my h-pipe does not eliminate drone, but it does limit it to a very narrow rpm range, which i can easily avoid while cruising (thus no drone "problem")

So, on the subject of X-pipes (H), is there an X-pipe already built into the muffler delete? If not, is there any reason why I would "need" one? Just curious.

On the resonators, I like the sound of the car now (if it wasn't buzzing), but wouldn't mind it a little louder. I guess my concern is that without the resonators, it might sound more like a car that has no mufflers....which I never liked except at the track. A solution seems to be to install race mufflers in place of the resonators...

Just reacting to Zen's comment:
"The videos are to show how crappy the sound is without mufflers or cats"

Any thoughts?

your **** del may or may not have a crossover built in, there are no universals. no question your rear **** setup helps to add a more "stock" tone to your exhaust note, an x pipe will sound more "open", but not like open exhaust, just more like it. with rear exhaust and a blending of cylinder banks via x-pipe, the sound is pleasing especially considering the minimal coin outlay necessary, imo.

 

[Vipuronr]

Hey Euch....I know we've had this discussion before - think it was on hi-flow cats. Guess my question is, replace the resonators with Dynomax or Magnaflows or take out the resonators and run the "true" muffler delete pipe. Just curious if I won't like the sound...don't want to have to do this twice, cut them out and then end up putting back new ones.

If I'm not mistaken, don't you have hi-flow cats and muffler delete?