Author Topic: Dynomax muffler (Read 11172 times)

automatic · « **on:** April 09, 2007, 07:50:09 AM »

I just got a Dynomax muffler welded on that I've been sitting on since the fall. My initial impression is that it sounds significantly deeper then the Bosal OEM equivalent muffler I had on previously. My problem with the Bosal was the rattly baffles led to a tinny sound that was a bit louder then I was comfortable with.

At city speeds the Dynomax is perfect much deeper and confident sounding then stock, at highway speeds it drones a bit more then I would like, I suspect I will get use to it as its really not that loud. Overall I think its well worth the money, the OEM exhaust sounded like a cheap Honda exhaust which I never felt comfortable with.

logger · « **Reply #1 on:** April 09, 2007, 11:37:19 AM »

I have a dynomax and think it sound great .

automatic · « **Reply #2 on:** April 09, 2007, 12:40:06 PM »

Quote from: logger;23294

I have a dynomax and think it sound great .

My last car was a WRX catless with a Prodrive muffler. Lets just say that is a tough act to follow.

bimmerm42 · « **Reply #3 on:** April 09, 2007, 04:38:17 PM »

could you tell me the specs(inlet,outlet size) or part number of the dynomax muffler?

91318isfoundation · « **Reply #4 on:** April 09, 2007, 10:51:46 PM »

super turbo right?

logger · « **Reply #5 on:** April 10, 2007, 08:20:04 AM »

Oh mine is magnaflow ! can't remember witch one but comes in same size as stock and sounds great ?

gearheadE30 · « **Reply #6 on:** April 10, 2007, 07:26:15 PM »

Any idea how it compares to the supersprint system as far as sound?

91318isfoundation · « **Reply #7 on:** April 10, 2007, 07:58:53 PM »

check this out came across it a few months ago b4 i cracke dmy head
http://bmwquebec.ca/bmw/technical/e30_318is_exhaust_mod

AL GReeNeRy · « **Reply #8 on:** April 11, 2007, 02:00:20 AM »

Quote from: 91318isfoundation;23458

check this out came across it a few months ago b4 i cracke dmy head
http://bmwquebec.ca/bmw/technical/e30_318is_exhaust_mod

i read that and it sold me on the dynomax. i got the super turbo on my car now with a stock cat and no resonator.. ill prolly upgrade to full magnaflow soon though... otherwise, dynomax is definitely worth the price

nomad · « **Reply #9 on:** April 14, 2007, 09:36:49 AM »

So the author of that article just cut off the rear muffler, and welded the Super turbo on? Did he leave the stock resonator?
I'm interested in a system that has NO DRONE and only gets louder when you stomp on it.

Al Greenry - I noticed you got rid of the stock resonator, did you just want it louder or something?

I'm very interested in this setup now. I'm off to Summit racing to scope out the choices.

91318isfoundation · « **Reply #10 on:** April 15, 2007, 02:31:45 AM »

im retty sure he just cut off stock muff

DZick · « **Reply #11 on:** April 15, 2007, 08:41:41 PM »

I have the Dynomax w/ Hiflow Magnaflow Cat... lets just say at first i was kind of embarassed. now i just set off car alarms

nomad · « **Reply #12 on:** April 16, 2007, 03:03:52 PM »

so you have the high flow cat and no resonator?

The key to a good sound (IMO) is the resonator. It cuts down high frequencies, and keeps it from being "17-year-old-punk-kid-loud".

I'm just trying to figureo ut if the folks who say it is only marginally louder are using the stock resonator.

ecpreston · « **Reply #13 on:** April 21, 2007, 05:01:38 PM »

Quote from: nomad;23883

The key to a good sound (IMO) is the resonator. It cuts down high frequencies, and keeps it from being "17-year-old-punk-kid-loud".

Apparently! I had a straight through Dynomax on my m10 318, gutted cat, and it was surprisingly quiet. On this m42, I just got a custom bent pipe to go from the manifold all the way back, and a Dynomax is damn near unbearable at anything over 1/4 throttle. This was an IMPROVEMENT over the cheapo Thrush Turbo knockoff thing we tried at first, that was miserable. But the Dynomax still has plenty of high frequency, ricer noise. If a cop is behind me at a light, I'm going to have to coast up to speed. I am actually quite concerned that I won't be able to autocross it tomorrow it's so loud.

So yes, the cat and resonator must have been doing more than I gave them credit for.

denious · « **Reply #14 on:** April 21, 2007, 06:46:23 PM »

I'll make a clip toevening or tomorrow of my setup, was going to do it for ages now. The cheapest setup one could ever see with new parts in Quebec: 30$ for a cheap resonator and a Raptor muffler. Yes, it's raspy. Too raspy & loud to drive with windows down? Only at 5k at wide open throttle. Inside it's all good.