348 348 Challenge Exhaust Restoration

Try to polish tips with a very thin steel wool and water.

 

Lucas,

Just polish the tips and leave the rest of the muffler alone. It's in nice condition with patina it has collected with light use.

By the way, the correct name for that part is "Special Challenge Silencer."

348 and F355 Challenge cars came with a Special Challenge Silencer for noise restricted tracks and a Challenge Silencer for unrestricted tracks.

Not all Challenge silencers had ANSA stamped on the ID plate or on the silencer body. The Ferrari part number plate with the correct part number is what's important.

Your Part #147773 silencer is an OEM 348 Challenge Silencer.

Barry

 

What you pictured is the is the "unsilenced" version which is correctly termed by Ferrari in the 348 Challenge Regulations Manual as the "Special Challenge Silencer" with Part Number 147773. This is the silencer used on tracks without noise restrictions.

The "Challenge Silencer" is the quiet version for noise restricted tracks like Lime Rock Park. The part number for the 348 Challenge Silencer is 156072

I don't have a copy of the 348 Challenge Regulations Manual but this page from the F355 Challenge Regulations Manual provides similar information however with different part numbers...


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Challenge Silencers for both the 348 and F355 Challenge cars look similar to the stock mufflers.

Both types of Challenge silencers are stainless steel.

I wouldn't bother jet-coating your silencer. It looks as it's supposed to look after it's been in light use.

 

I had that exhaust on my 348 racecar. It's loud!!

 

It's loud alright, FBB! It might be a bit louder than my F355 Challenge Special Silencer...






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Here's my Challenge Silencer for muffled events...


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It sounds like a tubi.

 

Lucas,

You can access the 348 Challenge Parts Manual on Ricambi America's website: 348 Challenge (1995)

Barry

 

I got this cool unobtainium manual for 1994.



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I have never seen a chrome one of those.

 

I have a challenge muffler that came with my car. Looking to sell it, would anyone know what is is worth? Image Unavailable, Please Login Image Unavailable, Please Login

 

They were loud past 4000RPM, They are too loud for the local track

 

Yeah they can be very loud LOL

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Those usually have a turbo blocking a lot of the noise. These cars can be ear protection loud with a straight exhaust, at least with the windows open.

 

Yes, at the track we're required to have our windows open for safety reasons. Ear protection is a must with the Challenge silencer. My helmet has speakers fitted (I don't care for earbuds) with overlying padding which provides the necessary ear protection for me...


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Communication with my pit crew is with Vertex 531 digital UHF transceivers and a push-to-talk switch on my steering wheel...


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You've chosen wisely. A Challenge silencer is not for a street car.

 

Great for ordering lunch

I can hit a repeater from the Chuckwalla track and order a pizza to be delivered LOL

 

I can't hit a repeater at our tracks here in the East, Tim. I have to place my order for pizza through my pit crew...


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Most of my calls are to let them know I'm pitting in to check tire pressures. Every once in a while it's for something more important like the time my alternator light came on. So it was back to the garage where they found a broken wire in the connector harness to the alternator...


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They spliced the wire and I was back on the track 30 minutes later.