Because I want to be quiet on the outside of the car as well.


Densly packed wide body muffler would quiet the exhaust most. But also make sure its 3" straight flow through muffler for best power and response.

 

just a tip for those wanting quiet. the magnaflow offset in/ offset out is very quiet muffler. center in /center out not near as quiet. I am a big fan of quiet myself. I am pretty sure it gets even more quiet with age.

I am currently making exhaust for my evo1. I was able to squeeze an evo 8 meagan rear muffler where cat used to live. I think I am going to try offset/offset borla in the rear.

here is pic of why fujitsubo are so quiet. they really neck down on inside of straight through muffler. the e-bay meagan resonator does same thing.

 

Some of these suggestions and recommendations are downright hilarious. It just goes to show how subjective sound is. I completely understand what the OP is after and made that pretty clear in the last thread. Anything purchasable today that is quieter than a Cobb 3" catless turboback WILL have a neckdown/reducer/obstruction similar to the picture posted above by 94AWDcoupe, and this is not what the OP wants. He wants a system as close to stock noise levels as possible but it must be catless and must be full 3". It must be quiet inside the car and outside.

I'm in the same boat. Purchased and installed a Rs-r Exmag (big can) in 07, sold it two days later. Purchased the RRE 3" stealthback with Rallycat, modified it with an altered QTP 3.5" valve the same week to cut down the noise. The car was also datalogged under every driving condition to monitor boost and knock. It helped somewhat but was still too loud. Also, backpressure buildup dictated the modification limits of the valve. The valve idea was derived from the (exup valve) concept used on most sportbikes today. That setup was eventually removed because the valve opened too slow. Thought about the ATP pneumatic valve but they don't produce it anymore. So I'm back to running the 3" downpipe with 3" Rallycat and stock catback. Looking for options for the spring when the Evo comes out of hibernation. I'll be following this thread closely. If this idea of BluEVOIX works, I'll modify the RRE exhaust with the Vibrant tail piece and a Bullet muffler in place of the Rallycat. I still have a spare unused 3" helix TP that I can sacrifice. The combo will probably be even more mellow than his because of the 36" of resonator present in the RRE piping.

Good luck BluEVOIX!!

 

Werd. I bought one used and the resonator had a split in one of the welds. Nothing a TIG welder can't fix but it is something to be aware of.
Nice Mellow sound with a Megan resonated Test pipe...should be better with a Mil.Spec cat (test pipe too stink!)

 

are you using that canister you showed me in a thread a while back?

 

Thanks for picture!! That looks like a bad restriction.

You are right on the money on what I'm trying to acheive!!

Yep, I bought my Cobb exhaust brand new and it split on me too. I started noticing a louder exhaust note at first after the exhaust would get warmer. I thought the muffler was slowly going to crap but then once passing through the tollway I heard the pfff pffff pfff leak sound comming from the car. Later I confirmed its exact location after driving around to warm up the exhaust and checking underneith. I couldnt pin point it at first but after running my hands around the exhaust rear section, thats when i felt the leak from the resonator. Later it became larger but I had an exhaust shop weld it up.

No. That one was a 3" chambered stainless steel muffler from stainlessworks.com . This is a straight flow through system from Vibrant.

Stainlessworks chambered muffler but 3" internal


Vibrant 3" straight flow through in my posession.

 

BluEVOIX - I'm curious if NoTec's idea was ever under consideration - basically taking the RRE Stealth and replacing its Magnaflow with the Vibrant? Seems like that would be pretty close to what you want.

 

Not really. The RRE is not stainless steel and also it doesnt have V-Band flanges. On top of it all I would still have to purchase bullet muffler and make that fit in the equation. So there would be a little too much customization than I would like. In my opinion resonators dont quiet exhausts. Look at all the video clips of resonators being installed, they just change the tone slightly but never quiet down. Only the widebody resonators that are like mini mufflers would do a good job quieting. Otherwise in most cases they just reduce raspiness in exhaust tones.

I decided to go with the Buschur because its a full turbo back v-band system and it comes with a bullet muffler in the center. So the only modification I would have to do is weld in the muffler in the rear.

Update I wont be able to install it this Sunday as planned because my friend needs to fix his garage heater this Monday before we work on it. But next Sunday Feb 1st it will be done. Its too cold to work on it right now because the whole turbo back needs to be installed and not just welding the rear section.

 

Couple of things. First off thank you for buying our system. I'd like to give some input though.

First, the oval shaped muffler you bought does gain some area on the sides but some muffling is lost on the top and bottom compared to the Magnaflow we use that is round. The area is actually much closer than you'd think and now that I pointed it out you'll realize it.

IF you want the car quiet there are two really good options. One as you know is to run a cat, which you already had. The other is the bullet muffler in the center like you have and our normal round Magnaflow in the rear, it's quiet like that and I mean quiet. It's even quiet on a GT35r car with 600+ whp. My brother runs it on his car and I am shocked at how nice it is to ride in.

The Fujitsubo exhaust sucks. We gained 27 whp just swapping the catback out for ours on a 300 whp EVO. You see the pictures 94awdcouple posted? It sucks, stay away from it.

One last thing. If you are stuck on running the oval Magnaflow PLEASE do yourself a favor and mark the rear section of the exhaust where it needs cut ON THE CAR. Then remove it and cut it. The put the tip section back on the hanger and the V-band piece back on the catback pipe and tighten it down. Then slide the oval muffler in there and make sure to look at the tip angle and the angle of the muffler. The bad part of using an oval muffler is if you get it off a little in the rear it looks like hell. So you have to put it on the car and then tack it in place with the welder so it sits level in the car. Just a pointer to help you out.

Good luck and thanks again for the support.

 

Thank you for your input. I'm going use your recommendation during installation day.

I've never heard of the bullet + magnaflow combo before in person or close up video. But from my experience with the exhaust systems I've had was that widebody generally quiets more than round mufflers. Thats why I have a bad opion on round mufflers. I could be wrong since every brand/design is different but hopefully what I have planned right now is going to be sufficient.

School has started right now so money is tight. As soon as I pay off this project and finally get tuned (Hopefully by mid spring), I might just purchase the magnaflow rear section to try it out. The V-band is going to make swapping soo much easier!

Any one local area running the Buscher dual setup bullet+magnaflow mufflers please pm me if we can meet so I can check it out if possible.

Thanks,
Armen

 

I commend you on trying different ideas to get the sound you want. I have the regular BR exhaust which I ran with a test pipe and their quieter magnaflow at the end. It was still too loud for me so i added a bullet where the cat goes, better but not enough for me. Emission testing day was coming so i ordered the BR Catco 3'' HF Cat. I have had it on ever since and am in love with my Evo again. The power loss is about 10 HP but people dont realize that you actually gain some torque down low. I went 11.76 at 117 with a Red turbo on pump gas and 23 psi with this exhaust.
Moral of the story, try the BR Cat with the v-band ends and it will take you 10 minutes to get the sound your looking for and be LEGAL to boot.

 

You have some really good points. The only reason I'd be willing to attempt this with the RRE system is because I don't drive the car in the winter or anywhere near salt. I'm pretty sure this system would rust itself to pieces if ever it were used throughout two winters. Also, you are correct about resonators controlling rasp and not overall volume. That is the reason I used the term "more mellow" in my post above.

Again, I have to commend you for going through such lengths to find your ideal system. I'm hoping it all works out. Good luck.

 

Got my evo 1 running with new exhaust . I was able to squeeze the round Meagan rear muffler from evo 8 where the cat resided. It is quiet. very quiet. Actually more quiet than the fujitsubo restrictor that was replaced. Its the most quite turbo exhaust I have heard. factory like sound level. My current rear muffler is a stock evo 8 modified muffler. The stock in is capped of. The new in is on the end instead of side. Essentially creating straight through muffler.

 

I have a HKS exhaust which has a resonator and I also have the megan resonated test pipe hooked to an apexi dp. Would adding a bullet muffler in place of the megan test pipe make it more quiet. what muffler would fit in the stock cat place?

 

i'm not sure how far along you are with your plan.

But if you haven't welded anything yet. Here's a better plan (trust me).

Purchase a Magnaflow part #12289. It's a 24" straight through 3" muffler.

Weld that to your exhaust under the rear bumper and you'll never have a quieter 3" exhaust.

I was making over 600whp before i sold my evo with this setup and the car sounded perfect.

cheers.