I am in the process of looking for the quietest 3" catback. I have narrowed it down to the AVO and the Fujitsubos. I have heard they both sound like stock and I have seen that they also look stock. The AVO looks more stock, but I like the Fujitsubo quality. Anyway, what is the actual design of a resonator. I heard that the fujitsubo necks down to 2.5 inches in the resonators. I thought resonators were just little mufflers? AVO necks down also? I am just wondering if there is a quiet exhaust that is 3" all the way through. If there isn't, would it be better to just get an Ultimate Racing 2.5" cat rather than a 3"? I would like to get the 3" cat, but because of of the resonators, are they enogh to nullify the benefits of the 3"? My ideal setup is the Fujitsubo with a hiflow cat, and either the fujitsubo or HKS downpipe. Hopefully they all fit. Then again I don't know if the 2.5" cat is a neck down from either downpipe. Any input would be appreciated. Thanks. You guys are always helpful.

 

31 views and no replies. I would think at least ONE of you would have some input.

 

I have a Buschur Muffler Delete pipe and it's just barely louder than stock

 

That's nice, but it doesn't answer my question. It is still not 3 inch. I have seen a clip with delete pipe. Too much smoke coming out of tailpipe. I don't like the appearance either. Thanks though for the reply, though. It's the thought that counts.

 

My buddy put on a B&B catback. I swear its not louder than stock idle...probably a bit louder at WOT.

 

B&B! Stock like sounds and no resonators. Sounds really good.

 

Turbo XS - RFL TI exhaust has its mid pipe resonated... it is on the list of one of the quietest exhausts in the Evo Market

 

I've got the AVO.
The resonatated section is a full 3" on the inside, wide open, with a perforated wall which allows gases to be resonated, I guess, into the extra volume. The muffler is designed the same way. Yeah, it necks down to fit the stock cat, but you can still run a UR 3" high flow, from what I've heard. I imagine you wouldn't quite be reaping all the benefits of the 3 inch cat because of the neck down.
Quality is very good on the AVO. I like the fact that the tip is .5 inch bigger than stock, but it still doesn't look like a fart can exhaust. Can't speak for the Fujitsubo. I've got the HKS downpipe with ceramic coating.
2.5 is a neck down from the hks downpipe because it is 2.75.
Hope this helps.
Let me know if you have any other questions about the AVO.
Here is a thread with some pictures:
https://www.evolutionm.net/forums/sh...&highlight=AVO

 

I think resonators make the exhaust sound deeper. If you want quiet, don't get a N1 style muffler. I think those oval-shaped mufflers, like the AVO, like some of the Fujitsubo, like stock, are the more quiet ones.

 

inariv5573,

I saw in other posts that you said you had the Greddy Titanium exhaust, and that you were polishing it up. Did you ever put it on the car ? And if you did it , was it too loud even with the silencer fitted that's supposed to bring the noise down below 95 db ?

I am asking because I thinking of getting the Greddy ( because of it's lightness, straight out exit angle ), but probably like you, I don't want the exhaust to be too loud.

Any feedback on the greddy is welcome, through pm, or if it's not hijacking this thread too much, on this thread.

 

Actually, orikosan, I was considering putting it up for sale. I did not install it. Looks great polished, I would sell it at a good price, and it is polished also. So I personally haven't heard it. I just saw the quality of the Fujitsubo and fell in love. Good memory in regards to my previous post though.

 

ASDF, Where can I get an HKS downpipe with ceramic coating? I didn't know they came like that.

 

I had to send it to Swain Technologies in NY.

Here's the thread:https://www.evolutionm.net/forums/sh...ght=swain+tech

Turnaround was 2-3 weeks. It's pretty neat stuff- I can touch the DP for a second just after turning off the car without being burned.

 

I'm pretty sure the Works downpipe is the same size as the HKS downpipe and the works downpipe is ceramic coated already.