Eta-to-M50: Build thread

[bubbajan21]

Are these E28 M5 rubber mounts?

[dannyb]

any specific dynomax model or any will do?

[LJ851]

Nice. I'm going to get the 22" one, too. The 13" seems like it will be too short to do much good. What was the rasp like?

All the Dynomax mufflers are very effective, they are not at all like a straight through. 22" inches should be very subdued, a grown man's muffler.

[Jand3rson]

Nice. I'm going to get the 22" one, too. The 13" seems like it will be too short to do much good. What was the rasp like?

[MR 325]

Evening the guy at the exhaust shop recommended the Dynomax, before I even mentioned it. He just said to make sure it's the chambered one, and said it would tone the noise down a ton and probably take away most of if not all of the rasp.

I remember we ran one of those on a customer's M50 car. It was ebay headers, full single 2.5" exhaust, single cat, and the Dynomax. Super quiet and nice to drive. Yours should sound perfect since it has the Magnaflow in place of a cat.

[MR 325]

Well, then what I'm going to do for now is order the Dynomax super turbo, a single 3" in/dual out is only $65. Everything i've find online says they're super quiet and will do wonders for loudness on pretty much any exhaust system. The flowmaster doesn't eveeven seem like it has packing, mostly just baffles.

Flowmaster mufflers are chambered. They don't have packing.

[Jand3rson]

Evening the guy at the exhaust shop recommended the Dynomax, before I even mentioned it. He just said to make sure it's the chambered one, and said it would tone the noise down a ton and probably take away most of if not all of the rasp.

Raspy on an M50 sounds kind of sweet. Its not a daily driver, why care?

I don't mind a little rasp, but the whole system overall is super loud, and just doesn't sound good.

[scabzzzz]

Raspy on an M50 sounds kind of sweet. Its not a daily driver, why care?

[Balleristic31]

I have the dynomax on my m42. Its basically stock noise level till u get on it. Then it sounds great :D

[shiboujin]

I say just shove some steel wool in your exhaust.

[Jand3rson]

Well, then what I'm going to do for now is order the Dynomax super turbo, a single 3" in/dual out is only $65. Everything i've find online says they're super quiet and will do wonders for loudness on pretty much any exhaust system. The flowmaster doesn't eveeven seem like it has packing, mostly just baffles.

[LJ851]

I also agree.The time for adding a resonator is when you like everything about your system except one area that is not constant like a drone @ certain rpm or a high end rasp.

[shiboujin]

resonators don't really make it quiet, they just change the sound. you need a different muffler. you still have the magnaflow? plus a flowmaster? and no cat? that's why it's loud. it has little to do with your headers.

I don't see why you can't fit more, I've got 2 mufflers, a cat, and still have to consider the transfercase when fitting it all in there. and it's not loud either :)

Agreed with everything. Resonators will take out a good chunk of ht rasp sound.

[8380 Labs]

You're right, but I need to know now how to fix it. I really don't like how loud and raspy it is, and there isn't room to add anything else.

it sounds more like an issue of replacing parts of what you've got now for quieter versions rather than an issue of adding more.

[Pudmunkie]

On a previous vehicle I tossed a 10" ish resonator on a system that only had a single vibrant muffler. It didn't quiet it sown at all, but it smoothed the tone. Of course it could have just been placement (mid car) among other things

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