Eager to see what you think of them...

 

Ok so couple of points here, it is really not easy to fit Hyperflow Cats to a SCUD, its one of those things that you wouldn't recommend someone to do, given the challenges involved and I just wish Fabspeed had a decent size set of Cats for the SCUD BUT at least the Fabspeeds actually FIT without substantial reengineering. Hyperflow cats are circa 2cm too long and not wide enough at the exit, so it needs some creative engineering.

Having said that and given that there are very little alternatives I am very glad I have just done this and am thankful to my wife for being tolerant in the process (and also the wifes on my two local engineers)

You can pull the exhaust valve on your SCUD but if you look at the density of the OEM SCUD cats its really scary vs Hyperflows. Lots more sound with or without the valve open but any SCUD will never be really loud without the valve open as the overhead bypass pipe is simply much narrower than that on a 430.

Also any OEM SCUD will never sound good with the valve open or closed with OEM CATS, [I] will post some pics on cat cell density when back from family ski vacation.

Need to drive some more but initial feedback is very promising

 

Whatever you choose to go with, the result is interesting and great if you show it here!

 

I have to post this video of a Scuderia that we tuned in the summer with Evolution Motorsports. After installing the Fabspeed headers and 200 cell sportcats, the customer decided to ship the Scud from Texas to Fabspeed's headquarters to finalize a lightweight exhaust and re-tune on our dynojet with Todd from EVOMS. We also swapped the high-flow catalytic converters for a set of catbypass pipes, since the customer is running 109 unleaded fuel. The power gains are immense, and below is a dyno graph of the additions.

YouTube - Ferrari Scuderia 500WHP UNLEASHED!!

 

I just wet my pants!

 

Axman listen to the F430 with our X-pipe installed>>
YouTube - Ferrari F430 Fabspeed X-Pipe Exhaust EVOMSit TUNED!

 

Thank´s, sounds awesome! Reps for you!

 

Just a heads up to a couple of people here, the seal at the joint on the Hyperflows wasn't fully airtight and so I got a CEL, the only solution being welding which I didn't want to do. So first of all credit to customer friendly Daniel at Ricambi for organizing a full refund for the Hyperflows and then thanks to Jeremy at Fabspeed for giving me a good deal on his HSJ 118mm SCUD cats, let you know how these go in 10 days or so. The Hyperflows did sound fantastic and I would have been VERY happy to keep them otherwise.

 

118 is not enough, HJS reccomends to use the 130mm 100 cpsi cat!

These are ours:


With the complete exhaust FERRARI F430 Coupè / Spider dyno testing, performance exhaust systems FERRARI , same fuel, map, conditions etc the car went from 472.9 Hp @ 8205 rpm / 471.4 Nm @ 5450 rpm to 509.4 Hp @ 8300 rpm / 501.6 Nm @ 5050 rpm.

 

Fabspeed said this when I ased exactly that question re 130mm "They are 118mm Cats. You do not need anything larger than that on the Scuderia or it will affect performance on the car"