Does a Capristo sound different on different 355's??

Well the most obvious thing is that they are both 2.7s so thats good. Secondly has the new one got a set of Cats on and the old one had straight pipes? And is the by-pass working?

 

Same straight pipes then?
Ok then is the top "Y" exhaust cat the same as the old one. Because there are two types and both types fit the 2.7s. Although i dont know if this actually makes a difference.
Have you considered the different sound you have may be down to the acoustics inside the different model 355s. What i mean is Capristo on a spider sounds way different to when its on a GTB from INSIDE the car. Could the difference be because with a GTS you get more of the sound than in a GTB because its opened more to the elements?
Is the new car a lower mileage model? Maybe a car with higher mileage has a freer engine therefore a different tone.
Other than that i am stuck with any more options. I look forward to reading other responces.

 

If it grunting i would have said the by-pass valve but you say its working. Mmm

 

There are some differences in the body regarding the berlinetta and GTS. Maybe there are differences in sound deadening? Both are 2.7s with straight pipes and working OEM bypass. Headers?

Take the top off the GTS and see how you like it. Mine is sweeeeeet.

 

Capristos make different sound pipes - Capristo 1, Capristo 2, Capristo 3 (soft to loud). Maybe one of your cars has Capristo 1 and another car has Capristo 3 or some combination different from eachother.

 

I'm betting on a belt change.....out of specs there

 

No 2 cars are built identical---Could be alot of things. back in the day when the 5.0 Mustang was the rage, I had 2 as well as many buddies had them. Most of us had the exact same muffler, exhaust setup, but all had a different little sound to them. Even the auto cars versus the 5 speed cars sounded different with all else the same...

 

+1 ........... after reading all the other posts ....... cam timing would affect sound a tad ............. as would low compression ..........

 

I swapped headers from oem to Fabspeed and got a pretty big shift in tone. Not quite as screaming, but sounds more torquey, to invent up a word.

Check them bad boys first.

 

Sometimes intake differences can cause this. Even a different air filter is going to cause resonation differences. For example, my 348SS sounds different after gothspeed intake modifications, everything else the same. Thsi was the same for my M3. A new air box and air filter changed the exhaust note.

 

Another possibility is if the headers are mis-shapen internally due to excessive heat. One would not know this until they actually blow out or crack.

 

Hello All on U, Hello all together,
we have such a situation already had a couple of times, the issue had damaged manifolds, perhaps, the exhaust valve does not open fully because a depression hose was leaking, the people have thought that opens the exhaust valve, they have heard a crying sound change, in reality, the exhaust valve had Not complete open.

We measured performance header from USA to the dyno and have seen the original have works best, that was one reason why we have built no Headers from 355, it makes no sense what to build new, the original function very well.
The reason they get broken is not a bad material that Ferrari used, there is a problem with the bypass and exhaust valve and exhaust.
Our exhaust system is built with separate ways, and we also have a new exhaust valve built if problems occur then remain open and not as the originals.

To provide a better service, we established Capristo U.S. Taurino Racing is the general agency for United States and has all the products in stock.
www.capristoexhausts.us
I apologize for my bad English.

Ciao Antonio

 

I've fitted quite a few of those Capristo valves now, the quality is exellent and no failures so far. I've seen original replacement ones fail in as little as a year!