I was wondering if there is a resonated midpipe that is available for the RS? The only resonated midpipes that I can find are ones that come with a cat-back system (E.g. Brullen, Cobb, Evo1, ect...)

Does anyone know of a vender or a company that makes and sells a resonated midpipe? (2.25" preffered)

Note: I have a dual-tip Stromung Axle-back

Thanks!

Jay

They have universal ones at muffler shops. I think they are like $30.

you can always get a custome one made at a muffler shop for pretty cheap

you can always get a custome one made at a muffler shop for pretty cheap

I think we both posted this at the exact same time! :lol: Actually I bearly beat you! :banana:

hey thats bs :furious:

One more question... Does the Stromung midpipe increase the exhaust volume by a lot? When I was searching on different boards, I found that some people say the Stromung midpipe actually makes the exhaust sound a bit mellow compared to the stock midpipe. Is this true?

Thanks
Jay

mellow? im not sure what you mean by that

mellow? im not sure what you mean by that

Sorry for being so vague... I was told that it makes the exhaust tone have more bass.

I need to repalce my stock midpipe due to a crack in one of the welds near the hanger. I might just cut a section of the pipe off and weld in a Cherry Bomb.

Jay

Sorry for being so vague... I was told that it makes the exhaust tone have more bass.

I need to repalce my stock midpipe due to a crack in one of the welds near the hanger. I might just cut a section of the pipe off and weld in a Cherry Bomb.

Jay
That would be your best bet. It does mellow it out and greatly reduces the 'cabin drone'. I'd just get a resonator over a glasspack. And if you do get a glasspack, make sure you have the louvers are facing the rear of the car to minimize the restriction.


Mick

Magnaflow powerpack # 14461 2.25" core 4.00 od case ...22" long...stainless steel...I had one installed on my stromung s/s midpipe to replace the really small resonator that came on it (wifey complains louder than droan)... quieted the drone to almost nothing...still moans & groans (sounding good)when you get- on- it though but quieter around town...my .02...bd

TWE also sells resonators that seem pretty affordable (around 75 beans) in 2.25", 2.5" and 3". thick wall, spun aluminum. they shouldn't take the "meanness" out of your exhaust note, you, like others have already said, won't get the droning or resonation in the cabin. alot lighter and cheaper than dynamat.

Update:
I finally had some time off of work to go to a local Meineke. I had a Cherry Bomb in my trunk (got it from work for almost nothing) and got it welded in to the midpipe. It fit in the exhaust tunnel almost perfectly and did quiet down the cabin noise very well.

When I lift off of the accelerator now, the drone that was there before is now almost non-exsistant. I would recommend this modification to anyone that wishes to get rid of the annoying droning.

One more thing... TWE does sell a resonated SS midpipe (2.25" or 2.5") for the RS models if anyone wanted to know. It looks like it is very good quality, but it is pretty expensive for a midpipe.

Jay

Magnaflow powerpack # 14461 2.25" core 4.00 od case ...22" long...stainless steel...I had one installed on my stromung s/s midpipe to replace the really small resonator that came on it (wifey complains louder than droan)... quieted the drone to almost nothing...still moans & groans (sounding good)when you get- on- it though but quieter around town...my .02...bd

were did you buy this? i asume you had your local muffler shop install it?

(link would be nice :))

Update:

After I put the Cherry Bomb on my car it started to make some crackling noises (the heat expansion noise after the car is shut off). After a few thousand miles, I guess the glass packing in the pipe has been melted or blown out. I need to replace it due to the annoying noises it makes now.

My question is where is the best place to weld in a resonator? The one I had welded in was pretty close to the center support bearing but never touched. I was thinking of placing it as far away from the converter as possible (too much heat). TIA


Jay

I had a magnaflow stainless steel resonator welded on my midpipe. I believe it was a 2.5" x 14". It cost less than 70 bucks and sounds excellent. Its a little bit heavy though.

were did you buy this? i asume you had your local muffler shop install it?

(link would be nice :))
Most muffler shops carry these, but you can buy them off the internet too. Instead of using a glasspack, I used a magnaflow 2.25" round resonator and had my muffler shop make a midpipe with it for me. Same effect. It is heavy though, as powerlabs mentioned, but theoretically it doesn't restrict airflow like a glasspack might.

j

Glasspacks are not all of a louvered design. Thrush "Cherry Bombs" are a perferated core, and have no difference in flow compared to a "resonator".

There are no cut and dried descriptive terms with exhaust parts. What people call mufflers, glass packs and resonators can vary greatly. Possibly the worst mistake you can make is assuming that all of these have certain charectoristics depending on what they are called.

Glass packs are nothing more than a resonator/muffler with glass fiber packing instead of steel wool, mineral wool, ceramic wool ect, the difference is the durrability of the material and ability to absorb sound (not a whole heck of alot of difference here). TWE sells a resonator that is repackable ( you have to ask for it), and you can stuff what ever and how much you want in it. I am unsure, but I would assume that it is also of the perforated core core variety.

People also assume that louvered core resonators/glasspacks/mufflers are bad. If you are set on using one size of pipe, they will indeed hurt performance, but will be much quieter than a perferated core variety of the asme dimentions. If you were to use a step up in internal diameter with JUST the louvered core muffler/resonator/glasspack when compared to the "correctly" sized resonator, you lose essentiall nothing performace wise, yet reatain the sound absorbing ability of the louvered core design.

Essentially any straight through "muffler" is a resonator. THe magnaflow mufflers with what ever they use as a sound absorbing material is nothing more than the typical "resonator" with a different shell shape. Its a tube, with holes in it surrounded by a shell with packing inbetween the shell and tube.

Just to be a pain in the as, resonators take some energy away from sound waves through the use of some sort of sound absorbing material (tke mechanical energy (the sound waves) and dissapate it as heat (ever bend a paper clip back and forth? It turns your mechanical energy in to heat)). Most of the resonating happening in the packed "resonator" (which is the same in a glass pack BTW) is the material absorbing the sound. Other resonators, which use an empty shell outside of a perferated pipe, use sound waves traveling freely outside of the perferated tube hitting each other to dissapate sound (a straight tube is going to set up standing waves much better, AKA renosence, so the "resonator" should actually be called an "anti-resonator". THe droning everyone complains about is a standing wave in your mid pipe). With a straight through pipe, this is not as effective as a damped enviroment such as the packed resonator. Ironically, almost all "mufflers" use this same theory of dampening sound waves, but are much better at it through the use of baffles among other things. A "muffler" is a very good "resonator", but unfortunatly restricts gas flow through it.

I use a 45 inch Thrush glass packed Cherry Bomb AS a mid-pipe (there are essentially flanges on either end of it) with a pipe from there to the exhaust tip and it is louder than stock at idle and cruise, but not by much. Driving like a balanced human, it wounds very deep, and does not draw the wrong kind of attention from stoplights or stop signs. There is obviously no droning, there are obviously no louvers (Thrush uses perferated cores), there is obviously no restriction, and when you get on the gas, or let it rev down from higher RPM, it it quit obvious that the car is coming or going.

Thrush are cheap, and I don't drive the car much. If I drove everyday, I would have looked at a more durable set up. As it is, it will probably last me for a few years.

cheeRS,

Greg