430 Headers Revisited- AP, Fabspeed, Capristo, Top Speed...

Even with the lower pitch ones, you don't have to worry about it sounding like an American v8. Mine screams like a banshee.


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I have the Agency Power Headers and Kline Innovation exhaust and I love the sound quality and volume.
By default its controlled by engine ECU so its quiet on idle, then the exhaust valves open up around 5,000 RPM to open them up fully sounding like a Formula 1 race car.

I purchased the inconel valve controller so that I have complete control of the exhaust valve anytime I want.

No one has ever complained my exhaust being too loud. In fact I get drivers following me around so they can listen more to my exhaust.

And at stop lights I get frequent request to rev it.

As mkzhang have mentioned I have yet to come across headers and or exhaust that will make an F430 or 360 sound like a muscle car V8.

Here is mine:



Dan

 

I went with Top Speed headers and coated them. Have not driven the car yet. There was someone in a thread who wrote (without any facts) that the pipes had different length but i think the consensus was that Top Speed was a copy of the AP/Fabspeed headers although not polished.

 

This. Mine has Fabspeed and not American-V8-sounding at all.

 

I have the top speed and installed them about 6 months ago. Absolutely no regrets what so ever. Everything that I have heard states they are the same as fabspeed/agency. Even if they were not 100% equal length you will never notice the difference.

The install went flawlessly and they fit up perfect. I have put a couple thousand miles on since the install and they have preformed flawlessly. As for the sound I think it sounds perfect. If you leave the valves plugged in it is not noticeably louder idling or under light throttle. I would say maybe 10% increase. Wide open throttle is noticeably louder (30%) and it still has that banshee scream to redline.

At the end of the day it’s your money and your comfortability factor. For me I don’t want to throw money away when I don’t have too.


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i have the caps with the cap hi flow cat and stock mufflers. sound is awesome and the burbles are even better!

 

Can we use scud headers as an option to get rid of precats? I know they use secondary air injection to get the cats up to temp quickly, but what happens if that's just not used? You could wait until the system was warm before an emissions test. Would we get CELs?

 

you wont get a CEL normally from removing the precats just from removing or 100 cell the secondary ones

 

I went with Fabspeed myself. My mechanic that installed them made a point of commenting on the perfect fit (bolted right up) and great build quality. I went with the blankets too, since I have never really bought into the ceramic coating being all that effective. No heat issues so far.

As for sound, I already had an X-OST Maranello back box and added Fabspeed sport cats to replace the blown out factory units, so nothing is stock. Can’t really give you a “headers plus stock exhaust” read, but can tell you that my particular setup has a distinctly challenge car sound, and one hell of a bark on cold startup. Might be a bit too loud for some, but it’s working for me.

I did have to add the O2 extenders to get rid of the CEL after swapping things out though.

 

I have ceramic coated AP headers on mine. Handles the heat fine. Just be aware that for the first 20-30 miles, you'll get a load of smoke!

It only gets very loud when the valves open up!

 

I have ceramic coated AP headers. I have not seen any heat issues going on 2 years now.

I am also the one who posted about the exhaust being "obnoxiously loud" BUT, I have a Tubi exhaust without valves, so mine was louder than stock to begin with.

My tech tells me the best sound is headers plus stock exhaust.

 

I had AP headers, but kept getting a cel and didn't know why. Shop determined that the header flange was warped and needed to be machined flat. I opted to try the Top Speed Headers since they were pretty cheap. CEL turned off right away and they're great!

 

I also went with the top gear headers and wrapped them. The price point was too good to pass up and I really just wanted to get rid of the pre cats before anything bad happened. The fitment went great and I used bolts with slightly smaller heads so I was able to get to all of them with a socket. They are louder than the stock but not by much. Like stick said they did smoke out the place when I first started it. I also have a Kline on the way so that should be the icing on the cake. I think whatever set you decide on I'm sure you will be happy with them. Just the peace of mind from getting the stock ones off will be a good thing.

 

Thanks!

I went out for a 2 hour drive today after work as it stopped raining and I had 5 guys and 1 gal asked me to rev the engine some more at the stop light.
Love it!

Here you go, please see my DIY post here:

https://www.ferrarichat.com/forum/threads/diy-upgrade-your-stock-exhaust-manifolds-w-agency-power-headers.557663/

Dan

 

Yes, it was totally stock before aside from disconnected valves. I´ll let you know on the sound. According to my tech it was kind of a different pitch then he was used to.

 

I installed Topspeed on my lift last season and was very happy in both the quality and sound. I have a dyno thread on the results. I just finished installing the S-Line exhaust and will post a full write up including videos shortly.

 

What was the gains with only headers and stock exhaust?

 

Here is the LINKY

 

I had Top Speed manifolds on my last car and totally recommend them. The system was otherwise stock.


I have Capristo manifolds and 200 cell cats on my current car, but with a silenced X-pipe. There seemed to be lots of fuss about Capristo but I don't get it. The fabrication is just OK. Supersprint make the best manifolds IMO and are stand-out in terms of design and development.

I prefer the power delivery with the Top Speed 4-1 manifolds - it better suits the character of the car.

 

maybe its just the video but your first one where you say you have the top speed headers,, sounds deeper sounding then your second video where you say its capristo headers..maybe the difference is in the mufflers? your second video sounds higher pitch

 

Yes, certainly - it's not a like-for-like comparison. Changing the headers/manifolds alone produces a deeper, more nasal sound. I thought I'd post the second vid more for reference in case others have the X-Pipe rear and are thinking of changing the stock manifolds.