Aftermarket manifolds on but still not happy

If factory is poor quality why reuse them . Headers may give you a headache plus also gives you a piece of mind .


Use stock cats (yuk) with factory can

 

The risk is failure of the poor quality manifolds. If I had that issue , I would buy headers and forget about it .

Dream turns to a nightmare if the manifolds fail and you suffer engine damage.

 

I still maintain there is nothing wrong with the quality of the manifolds. It's the rigid mounting system at the rear that does not allow the exhaust to expand and contract that causes the headers to fail.

 

I have an update for the group!

I disconnected the vacuum actuators (not just the vacuum lines, but the actuators themselves) from the exhaust flaps this evening and rigged the flaps closed. I took the car for a spin and boom! So much better. She isn't obnoxiously loud or annoying, even at full throttle.

With my AP headers and the valves open, the car is essentially running straight pipes. It was just too much for me.

I think I will probably order the Forza kit so that I can remotely control the flaps. Closed around town and wide open out in the foothills.

 

You WILL cause damage running permanently closed valves! Forza unit is a good solution but even then careful use of closed valves will be needed.

 

What damage could be caused? Under sedate driving my valves are closed most of the time. I understand there will be excessive back pressure if the valves don't open on acceleration, but damage?

 

Interesting, I have recently installed challenge headers (no pre cats) and volume is up maybe 10%. Certainly nothing obscene, I'd say just right. I think the AP's have bigger primary pipes and 4-1 rather than the stock 4-2-1 design. Maybe that's what makes them so loud?

 

I can confirm the AP headers are outrageously loud.

As mentioned, I have a stock system (standard cats, back box and valve system) on my car with the AP headers. I was at a trackday at Silverstone last week - I was black flagged for noise @ 106db on drive-by - the limit was 102.

There were mostly race cars there including 430 challenge cars, a 430 GT3 and a couple 458 challenge cars - none of them where as loud as the 430 with AP headers!

However, some of my friends took a video from the pit wall - my goodness the car sounds stunning from the outside - sounded like an F1 car coming through the complex before it got to the pit straight! I thought it sounded pretty good in the car (it's a spider) but from the outside its just fantastic.

Heres the video:
https://youtu.be/mevIfdH8QE4

So I think the headers are staying!

I may get the forza switch for town driving though....

 

This has been discussed before. What specific evidence do you have that engine damage can result by not bypassing the muffler at higher RPMs?

 

Check out this thread and read the comments by mountain man on page 2:

http://www.ferrarichat.com/forum/360-430-sponsored-yellow-compass-group/435702-capristo-brackets-2.html

 

http://youtu.be/bI8q8EhpRXM




Sent from my iPhone using Tapatalk

 

There have been some reports of Scud headers failing and Scuds do not have the rigid mounting problem the 430 does, nor does it have pre-cats. And keep in mind most Scuds havent surpassed the 15k mark. People started to see 355 headers fail around the 25-30k mark. Time will tell how good the OEM headers are.

In the meantime, I will be replacing them with Capristo Headers , which are made from a higher grade steel than OEM, as a preventative measure. Scud replacements headers are $17,000 .... No thanks.

 

I wasn't aware the Scud was a less rigid mounting system, mine looked very rigid and similar to my previous F430 (full Capristo now) - for sure it does have some semi flexible pipe work in the valve area and of course no pre-cats to cause engine damage.

 

I guess what I meant was , the mounting is rigid, but the flexibility solutions are already there on the Scud, which is why Capristo doesnt offer the upgraded brackets for the Scud.

 

True, although for their own Scud system they created what is probably the best solution of any manufacturer - gearbox mounted to isolate from the chassis, sprung vertically and with 1.5inch expansion back to front and then additionally expansion left and right for the muffler.

 

He makes some very good points. If I'm not mistaken though he doesn't mention the lower brackets which effectively hinder the expansion (putting pressure on the headers) due to their rigid design, which is why they also fail. If I'm not mistaken these lower brackets do not exist on the 360 or Scud, neither of which suffer the same header failures. Coincidence?
When I removed my lower brackets the exhaust did not move or sag at all. Are they needed...no. Do they stress the headers...yes. Without them can the upper bow spring bracket work properly...yes.

 

Just out of interest did you guys install the replacement parts yourselves?
I've bought new headers, sports cats and a titanium exhaust but don't want to go to the expense of getting them fitted only to find I've got to replace them back to stock.
I'd appreciate any tips on self-replacement as I am quite handy.
Thanks

 

Complete how-to here:
https://aldousvoice.com/2014/03/25/ferrari-f430-exhaust-manifold-change/

 

does anyone know if these headers are the same as the fabspeed/agency power headers?

Ferrari F430 Coupe Spider 05-09 Top Speed Pro 1 Stainless Steel Exhaust Headers - Top Speed Pro 1 Performance

 

I previously had the Capristo headers, stock cats and twin sound exhaust.
Over time i concluded that i was not satisfied with the sound while the valves were closed
and the noise was too obnoxiously loud with the valves open (unless driving in the middle of nowhere).

I was contemplating the s-line exhaust because i like the higher pitch/tone but i was worried it would still be too loud and i wanted to keep the Capristo exhaust bracket system.

I ended up getting the Capristo "race" (valveless exhaust). After researching it online and on youtube i found some of the info confusing. On Capristo websites it seems to suggest that the "race" (also known as level 3) exhaust is the loudest-louder than the twin sound.

As someone (correctly) said in this forum, the exhaust gases always pass through the "race" muffler (no valves) so it will be quieter than the twin sound with the valves open.
I can confirm that is correct.
I also think the sound is more exotic than the twin sound. It has a slightly higher pitch (not as high as s-line though) and a richer quality to it compared to the twin sound.

i am very pleased with the result. Hope this helps those contemplating the same issues i had.

 

I recently installed a capristo race exhaust and fabspeed 200cell high flow cats on my F430 and the sound is amazing,it's got that high pitch F1 sound that I was trying to get.For me it's the best combo,and I tried several exhausts and this did it.