What exhaust on the 355 is this??

I have a nouvalari ss, hyperflo cats and fabspeed headers....
the sound is fantastic and no issues or CELs to speak of...

 

I bet it sounds phenomenal! So can you help clarify something for me? Here are a few quick questions:

1. Does using cat-bypass pipes damage the car in any way? Back-pressure, running lean or rich, damaging valves etc?
2.Is a test-pipe the same as a cat bypass pipe? What is a Y-pipe? Same thing?
3. Which combination should I use to achieve a beautiful exhaust note that is not RIDICULOUSLY loud? I want it to sing, but I don't want to get pulled over constantly or ALWAYS wake up my neighbors. I'd like it to rumble a bit at idle, too. Hmmmm. Please, school me a bit? Thanks in advance, chat-erari fellows.

 

It's the Kriesseig F1 Superhowl.
I have their catback on my 1995 F355B with Fabspeed headers and high flow cats and I love it.
I am trying to post more Youtube videos of it. I have one grainy one up now. Search for Gregg608.
Cheers

 

I have the Nouvalari supersports and love it. It appears to be very well made. For the price, you can't beat it. Especially with a lifetime warranty! I also have y-pipe and test pipes. This combo is LOUD. Interior sound clips were done with an iphone, and the mount covers the mic, so quality is not great. But you can get an idea:

[ame]http://www.youtube.com/watch?v=rpp6C9UTfFg[/ame]

[ame]http://www.youtube.com/watch?v=rEGXdcCKHnU[/ame]

[ame]http://www.youtube.com/watch?v=HKhh9L0yey4[/ame]

 

I also have a Nouvalari exhaust with Hyperflow cats. Otherwise stock.

Have never had a CEL or any issues at all. It is LOUD.
At first I found it a bit too loud for driving around the neighbourhood and planned to replace it with a stage 1 Capristo, but as time goes on I'm not so sure that I will.
It sounds like an F1 car ALL THE TIME which is actually pretty addictive and I love it now.
I may still make the change at some point but really it's hard to justify the money when it already sounds so good with the Nouvalari.

 

I agree with this post 100%. I went through all the exact same thoughts. I try not to take the car out too late if I can help it, because I am certain I would be waking my neighbors up. I do still kind of want to try a Capristo Stage 3 one day, but the cost difference is significant. And it just plain sounds MEAN with the Nouvalari.

 

1. No, what damages these cars are old cats that create excessive heat buildup. Test pipes (or de-catted pipes) reduce the heat buildup. Problem is they are not legal in most countries/states, thus the use of sports cats.
2. A test pipe is just a hollow tube, a de-catted pipe could be a test pipe or a pipe where the cat has been removed, they both have the same effect.
3.What you are requesting here is the exact reason Ferrari introduced the bypass system. When coming home to the neighbors it's quiet but when pushing up the revs, the actuator opens and the bypass system comes into play.

Capristo sounds best, is expense and gets a bit boomy for me on long drives. Tubi is probably more in line with what you are looking for.

I must just say that I think everyone misses the real point when looking for a new exhaust for their cars. The most important thing (in my humble opinion) is whether the exhaust and the bypass exhaust are mixed in the muffler or whether they both have separate paths to the exit pipes. OEM ferrari exhaust mixes them, so do old Tubis. This creates a heat back-pressure cycle issue which in turn is hard on your headers! I'm sure you've seen the header pics/problems on here! Ferrari realized this and changed it for the 360. Capristo's exhausts have always separated the main exhaust and the bypass, Tubi seems to have realized this problem as well and is now offering the same on their new exhausts.

So i would firstly look at freeing up flow (test pipes/decat/sports cat) and then finding an exhaust that doesn't mix the main/cat and the bypass. This will ensure your car runs much cooler and places less stress on your headers and in turn your exhaust valves. Once you narrowed this down, then choose the right exhaust for sound.

 

+1. I also have the Nouvalari SS mated to Tubi test pipes and stock headers. The sound is CRAZY. Bit of drone below 3k rpm but open her up and that's the closest you will get to an F1!! Build quality is superb and there is no fitment issue.

 

I thought it sounded like a kriesseig too...are the kriesseig and MS that similar?

 

Hmmm,just another garden variety 355 set-up
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I'd put a glass top on it and use it in the living room. No way I'd waste it on a car!

 

That is beautiful!

 

Thanks! This is why I love this forum. Appreciate the info! You answer raises an additional question: Is a Nouvalari exhaust one that "mixes the main cat and the bypass?"

 

Very cool but it will look bizarre without dual tips...

 

I don't think you know what you are looking at...it had a CF lower bumper with massive ground effects exhaust that you purchased separately.

 

The first and most crucial part of the exhaust when it comes to SOUND and POWER is this...if you start off your exhaust build and don't get this right, well guess what???
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Good info. From reading up on the stock headers...I would want to replace the stock headers with Fabspeed, at a cost of 3k. I'm not yet sure if this is a job I can do myself or if the engine has to be dropped to do this? It is one of the first things I am going to do when I get the car.

Also I looked on the Nouvalari website but could not find info on whether or not the SS pipes have a bypass for flow/volume control. I would ASSUME they do. Do they?

 

The nouvalari exhausts work with the stock bypass valve just like all the others do. There is some, but not a huge difference when the valve is open. The SS version is loud all the time.

I also installed nouvalari headers, and had them ceramic coated. They build a true 4-2-1 design like the factory, which supposedly produces a bit more midrange power and a slightly higher pitch sound compared to a 4-1 design like the Fabspeed. They also give a lifetime warranty on the headers.

 

Crazy price, crazy sound, crazy quality....go with Nouvalari. Best bargain for your buck and almost as nice as a capristo for half the money.

 

Again, totally agree.
If money was no object I think the perfect setup would be Tubi headers, Hyperflow cats, and Capristo exhaust. Oh, and a Gruppe M intake system to top it off!

However, given that I already have the Nouvalari exhaust, and given how superb it is, unless I suddenly find a large amount of money burning a hole in my pocket I'm more likely to spend the next wad of cash on Tubi headers or the Gruppe M, rather than replacing the Nouvalari exhaust with a Capristo.

 

Fabspeed headers, gutted cats and y-pipe + Nouvalari exhaust is by far the best bang for your buck when it comes to squeezing out the great sound potential of the 355.

 

I can't remember exactly what I paid for the headers, but I believe they were about half the cost of Tubis....maybe around $2K? Get in touch with FChat user captglen. He is the nouvalari salesperson I used and he was extremely helpful in setting everything up.

I would also recommend having them ceramic coated to help control heat as much as possible. The headers are built in England, so I had mine shipped to Zircotec who is also located there for coating, and then they shipped them to me once the coating was done. Zircotec does the ceramic coating for several F1 teams, so I assume they know their stuff! http://www.zircotec.com/

 

Thanks for all of the info. SO....do you guys have problems going through emission inspection? I live in NJ. Hope I wont have to r&r my exhaust every 2 years...

 

here's my 95 setup - tubi headers, tubi test pipes, y pipe, tubi exhaust...one of the best sounds in the world

http://www.ferrarichat.com/forum/348-355/313866-bradan-f355-2-7-y-pipe.html