Straight piped F355
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Straight piped F355
http://www.youtube.com/watch?v=ULERWoHHS_A&feature=plcp
Background on it:
Normally the F355 has a y exit from the headers - one goes to the regular cats and muffler, the other goes to smaller cats with a bypass valve that opens up to a less restrictive flow. The bypass valve is only opened under WOT. Ferrari has since moved these valves to inside the mufflers, the valve was probably a one-time experiment and the F355 was the guinea pig. Unfortunately, it wasn't a great idea and the valve would easily fail (costing over $1k to fix), leaving the car with an anemic sound.
This F355 has high-flow cats on it; they flow just as much as a test pipe (according to the manufacturer). After the cats is a straight pipe system with an xpipe along the way - no mufflers. The car has a pretty deep racecar like sound from idle to around 5000rpms, which you don't get to hear in this vid. After 5000rpms it turns into one of the craziest things I've ever heard in person. This video actually doesn't do it justice, but will give you an idea. This is a far cheaper alternative to the $10k Kriessig.
Background on it:
Normally the F355 has a y exit from the headers - one goes to the regular cats and muffler, the other goes to smaller cats with a bypass valve that opens up to a less restrictive flow. The bypass valve is only opened under WOT. Ferrari has since moved these valves to inside the mufflers, the valve was probably a one-time experiment and the F355 was the guinea pig. Unfortunately, it wasn't a great idea and the valve would easily fail (costing over $1k to fix), leaving the car with an anemic sound.
This F355 has high-flow cats on it; they flow just as much as a test pipe (according to the manufacturer). After the cats is a straight pipe system with an xpipe along the way - no mufflers. The car has a pretty deep racecar like sound from idle to around 5000rpms, which you don't get to hear in this vid. After 5000rpms it turns into one of the craziest things I've ever heard in person. This video actually doesn't do it justice, but will give you an idea. This is a far cheaper alternative to the $10k Kriessig.